Diethylethylamine (DEAE) yog dab tsi?
Diethylamine (DEAE), tseem hu ua N, N-Diethylaminoethanol lossis 2-(Diethylamino) ethanol, yog tertiary alkanolamine nrog cov mis molecular C₆H₁₅NO thiab CAS naj npawb 100-37-8. Nws cov qauv tso ob pawg ethyl (–C₂H₅) ntawm cov nitrogen atom ua ke nrog hydroxyl-bearing ethyl caj npab, tsim ib qhosterically hindered tertiary amine- tus yam ntxwv uas ua rau nws qhov kev ua tau zoo hauv kev siv roj.
steric bulk ntawm ob ethyl substituents txhais tau hais tias DEAE tsuas yog labile, thermally unstable carbamate intermediates raws li cov tshuaj tiv thaiv nrog CO₂ - tsis zoo li thawj amines (MEA) los yog unhindered secondary amines (DEA) uas tsim ruaj khov, lub zog -intensive carbamates. Qhov no ua rau muaj peev xwm ntau dua CO₂ loading peev (txog 1.0 mol / mol vs. ~ 0.5 mol / mol rau MEA) thiab txo qis zog, ua rau DEAE zoo nkauj heev rau niaj hnub roj sweetening thiab industrial CO₂ capture.
DEAE yog ib qho ntshiab, tsis muaj xim rau daj ntseg daj kua nyob rau hauv chav tsev kub nrog ib tug me ntsis amine tsw. Boiling point 161-163 degree, flash point 55-60℃(kaw khob). Nws yog tag nrho miscible nrog dej, ethanol, ether, thiab feem ntau cov kuab tshuaj organic. SinoLook Chem muab DEAE ntawm Ntau dua lossis sib npaug rau 99.0% purity los ntawm ISO 9001-certified cov chaw, nrog qib tshuaj (Ntau dua lossis sib npaug rau 99.5%) thiab ICH Q7 kev txhawb nqa muaj nyob ntawm kev thov.
Cov txiaj ntsig tseem ceeb ntawm DEAE
DEAE qhov tshwj xeeb sterically hindered tertiary amine architecture muab rau 6 qhov kev ua tau zoo ntawm kev kho roj, txheej txheej, kev kho dej, thiab kev siv tshuaj zoo.
🏭 Superior CO₂ & H₂S Gas Absorption
Cov ntaub ntawv thim rov qab bicarbonate intermediates ntau dua li cov carbamates ruaj khov, ua rau CO₂ thauj khoom ze rau 1.0 mol / mol (vs. ~ 0.5 rau MEA). Tsawg regeneration zog - tsis ruaj tsis khov intermediates tso CO₂ ntawm qhov kub thiab txias, txo qis reboiler lub luag haujlwm thiab chav noj hauv cov chaw kho roj.
🔥 Boiler Dej & Chav Dej Condensate Tiv Thaiv
High vapor-kua faib coefficient tso cai rau DEAE volatilize thiab mus thoob plaws tag nrho cov condensate rov qab system nrog lub chav. Neutralizes carbonic acid, tsa condensate pH rau kev tiv thaiv ntau yam (8.5-9.5) ntawm tsawg npaum li cas. Tau tshaj hydrazine, morpholine, thiab oxygen scavenger pob.
🎨 Waterborne Coatings Neutralizer
Cov ntsiab lus kub siab dua DMEA (162℃vs. 134℃) muab cov evaporation qeeb qeeb thaum tsim cov yeeb yaj kiab, muab cov pH txo qis dua, txhim kho lub sijhawm qhib thiab ntws -leveling, thiab txo cov amine blush hauv ntau -coat systems. Tau tshaj acrylic, PU, alkyd, thiab epoxy dispersions.
💊 Pharmaceutical & Fine Chemical Intermediate
Diethylaminoethanol moiety tshwm nyob rau hauv cov tshuaj loog hauv zos (procaine thiab lwm yam sib txuas), antihistamines, antispasmodics, thiab tshuaj plawv. Siv rau esterification, quaternization, ntsev tsim, thiab kev hloov pauv polymer. Pharmaceutical qib (Ntau dua lossis sib npaug li 99.5%) nrog ICH Q7 thiab DMF kev txhawb nqa muaj.
🧴 Surfactant & Emulsifier Building Block
Ob pawg ethyl muab ntau dua hydrophobicity piv rau DMEA-raws li intermediates, ua kom haum HLB tshuav nyiaj li cas hauv cov khoom uas tsis yog-ionic thiab cationic surfactants. Siv nyob rau hauv kev lag luam tu, kev tu tus kheej, thiab agrochemical formulation daim ntawv thov yuav tsum tau tshwj xeeb emulsification thiab wetting profiles.
⚗️ pH tswj & txheej txheem tsis ua haujlwm
Raws li lub hauv paus muaj zog me ntsis (pKa ~ 10.0), DEAE yog pH tsis zoo nyob rau hauv cov txheej txheem kev lag luam, electroplating da dej, textile ua, thiab tawv tanning. Tsawg vapor siab dua li cov amines me (DMEA) ua rau nws yooj yim dua los tuav hauv qhib - cov ntawv thov nkoj uas amine poob los ntawm evaporation yog ib qho kev txhawj xeeb.
📌 Dab tsi ua rau DEAE yog "Sterically Hindered Amine" - thiab Vim Li Cas Nws Tseem Ceeb rau Kev Kho Roj
Thaum CO₂ reacts nrog ib tug thawj amine (MEA) los yog unhindered Secondary amine (DEA), nws ua ib tug thermally ruaj khov carbamate ntsev - stoichiometrically limiting loading rau ~ 0.5 mol CO₂ ib mol amine, thiab yuav tsum tau reboiler kub (120–130℃carmate.) thiab tso pa tawm. DEAE ob pawg ethyl loj loj tsim steric congestion nyob ib ncig ntawm cov nitrogen, tiv thaiv kev ruaj khov carbamate tsim. Hloov chaw, CO₂ cov ntaub ntawv labile bicarbonate intermediates ntawm hydration, tsa lub theoretical loading peev mus rau ~ 1.0 mol CO₂ ib mol amine thiab tso CO₂ ntawm qhov kub thiab txias (95-110 degree). Qhov no txhais tau ncaj qha rau qis dua chav noj, me me reboiler loj, thiab txo cov nqi khiav lag luam hauv industrial amine gas kho units. DEAE feem ntau sib xyaw nrog MDEA lossis qhib nrog piperazine kom ua kom zoo dua ob qho tib si nqus kinetics thiab muaj peev xwm.
Diethylethylamine Industrial Applications
DEAE (CAS 100-37-8) ua haujlwm tseem ceeb thiab nruab nrab ntawm xya qhov kev lag luam loj.
Gas Treatment & Acid Gas Tshem Tawm
Sterically hindered tertiary amine rau CO₂ thiab H₂S nqus nyob rau hauv natural gas sweetening, LNG purification, thiab industrial CO₂ capture. Muaj peev xwm thauj khoom siab (~ 1.0 mol / mol), tsis tshua muaj zog rov ua dua tshiab, zoo thermal stability. Siv ib leeg lossis hauv cov qauv sib xyaw nrog MDEA, piperazine, lossis lwm yam kev txhawb nqa.
Boiler Dej & Chav Dej Condensate Treatment
Volatile neutralizing amine txhaj rau hauv chav los yog cov dej pub los tiv thaiv condensate rov qab tshuab. Kev faib tawm thoob plaws hauv chav thiab condensate theem ntawm cov vapor siab -kua faib coefficient. Nce condensate pH rau 8.5-9.5, tiv thaiv carbonic acid corrosion ntawm pipelines thiab tshav kub exchangers.
Waterborne Coatings & Inks
Neutralizing amine thiab pH stabilizer rau waterborne acrylic, PU, alkyd, thiab epoxy resin systems. Cov evaporation qeeb dua li DMEA muab lub sijhawm qhib tau zoo dua, ntws zoo dua -leveling, thiab txo qhov tsis xws luag hauv ntau -coat systems. Tau tshaj tus qauv dispersions thiab number case tsheb.
Pharmaceutical & Fine Chemical Synthesis
Qhov tseem ceeb nruab nrab rau cov tshuaj loog hauv zos precursors, cov tshuaj mob plawv APIs, quaternary ammonium compounds, thiab cov tshuaj tshwj xeeb zoo. Pharmaceutical qib (Ntau dua lossis sib npaug li 99.5%) muaj nrog impurity profiles, residual solvent analysis, ICH Q7 compliance support, thiab DMF filing help.
Corrosion Inhibitors
Cov khoom siv hauv vapor{0}}phase corrosion inhibitors (VCI) thiab cov khoom siv kho mob hlau. Siv tau zoo rau kev tiv thaiv ferrous thiab tsis yog -ferrous hlau thaum khaws cia, thauj, thiab kev ua lag luam. Siv nyob rau hauv xeb tiv thaiv coatings thiab hlau preservation formulations.
Surfactant & Emulsifier Synthesis
Lub tsev thaiv tsis yog -ionic thiab cationic surfactants, emulsifiers, thiab tshwj xeeb wetting agents. Ntau dua hydrophobicity tshaj DMEA-raws li intermediates ua kom haum HLB formulations for industrial cleaning, personal care, and agrochemical applications.
Kev kho dej & pH tswj
pH buffering tus neeg saib xyuas, neutralizing puag, thiab corrosion inhibitor tivthaiv nyob rau hauv cov txheej txheem dej, electroplating da dej, textile xov, thiab tawv tanning daim ntaub ntawv. Tsawg vapor siab dua DMEA txo cov amine poob hauv qhib - cov hlab ntsha.
Technical Specifications & CoA
Siab -purity DEAE ua los ntawm cov txheej txheem catalytic siab heev raws li kev tswj hwm nruj. Daim ntawv pov thawj tag nrho ntawm Kev Ntsuam Xyuas (CoA), Daim Ntawv Qhia Txog Kev Nyab Xeeb (SDS), thiab Daim Ntawv Qhia Txuj Ci (TDS) tau muab rau txhua qhov khoom xa tuaj. Pharmaceutical qib (Ntau dua lossis sib npaug li 99.5%) nrog ICH Q7 kev txhawb nqa thiab DMF cov ntaub ntawv kev pab muaj nyob rau ntawm kev thov.
DEAE - Standard Quality Specification & Hom CoA Cov txiaj ntsig
| Parameter | Specification | Yam CoA Result |
|---|---|---|
| Qhov tshwm sim | Ntshiab, tsis muaj xim rau daj ntseg daj kua | Ntshiab xim tsis muaj kua |
| Kev ntsuam xyuas (GC), wt% | Ntau dua lossis sib npaug li 99.0% | 99.4 – 99.7% |
| Molecular Formula | C₆H₁₅NO | C₆H₁₅NO |
| Boiling Point | 161-163 degree | 162 degree |
| Qhov ceev (20 degree), g / cm³ | 0.884 - 0.890 g / cm³ | 0.887 g / cm³ |
| Cov ntsiab lus dej, wt% | Tsawg dua lossis sib npaug li 0.2% | 0.08 – 0.14% |
| Xim (APHA / Hazen) | Tsawg dua los yog sib npaug li 20 | Tsawg dua los yog sib npaug li 10 |
| Flash Point (lub khob kaw) | Ntau dua lossis sib npaug li 55 degree | 58 degree |
| pH (10% aq., 25 degree) | 10.5 – 11.5 | 11.0 |
| Refractive Index (20 degree) | 1.440 – 1.446 | 1.443 |
| Amine nqi | 470 – 490 mg KOH/g | 481 mg KOH/g |
| Residue ntawm Ignition | Tsawg dua lossis sib npaug li 0.01% | < 0.005% |
Kev nyab xeeb, tuav & Cov ntaub ntawv tswj hwm
DEAE yog cov nplaim taws, corrosive kua (flash point 55–60 degree) cais raws li Class 3 Flammable Liquid / Class 8 Corrosive raws li UN 2686. Full GHS-raws li SDS muaj nyob rau hauv lus Askiv, German, Fabkis, Mev, thiab Suav. Pharmaceutical-qib cov ntaub ntawv suav nrog impurity profiles thiab ICH Q7 ua raws muaj nyob rau ntawm kev thov.
| Kev nyab xeeb Parameter | Tus nqi / Sau ntawv |
|---|---|
| GHS Classification | Flam. Liq. 3; Skin Corr. 1; Qhov muag Dam. 1; Mob Tox. 4 (qhov ncauj); STOT SE 3 |
| GHS Signal Word | DANGER |
| UN Number / Packing Group | UN 2686 (Flammable kua, nos) / PG III |
| Flash Point (lub khob kaw) | 55-60℃(58℃raug) - ASTM D93; lis raws li cov kua flammable |
| Vapor Siab (20 degree) | ~2 hPa - nruab nrab; siv nyob rau hauv qhov chaw ventilated |
| Yuav tsum muaj PPE | Tshuaj-cov hnab looj tes tiv thaiv (nitrile/butyl), tsom iav kev nyab xeeb, daim npog ntsej muag, tshuaj apron; ua hauj lwm nyob rau hauv ventilated cheeb tsam; cov khoom siv antistatic pom zoo |
| Cia | Txias, zoo- tso pa tawm, tawg- thaj chaw pov thawj; 5-35 degree; deb ntawm tshav kub, sparks, qhib nplaim taws, muaj zog acids, thiab oxidizers |
| Kev tsis sib haum xeeb | Muaj zog acids, muaj zog oxidizers, acid chlorides, isocyanates, tooj liab thiab tooj liab alloys |
| REACH xwm txheej | Registered (CAS 100-37-8, EINECS 202-845-2) |
| Cov ntawv pov thawj | ISO 9001 · ISO 14001 · OHSAS 18001 · UN GHS · US DOT · IMDG raws |
| Pharma Documentation | Impurity profile, residual kuab tshuaj ntsuam xyuas, ICH Q7 kev ua raws li kev txhawb nqa, DMF kev pab cuam - muaj nyob rau ntawm kev thov |
| SDS Lus | Lus Askiv, German, Fabkis, Spanish, Suav |
| SDS / CoA / TDS Thov | sales@sinolookchem.com- tshaj tawm sai li sai tau raws li kev txiav txim pom zoo; muaj nyob ua ntej rau kev tshuaj xyuas ua raws |
B2B Supply Solutions & Nqe
SinoLook Chem xa DEAE rau B2B cov neeg siv khoom hauv 50+ lub teb chaws. Tshaj li 15 xyoo ntawm kev xa tawm kev paub nrog pob tshab, kev ua lag luam-ua raws tus nqi, txo ntim ntim, thiab ruaj khov- nqe lus cog lus rau ntev - daim ntawv cog lus muab khoom.
| Order Volume | Ntim | Cov kev pabcuam suav nrog |
|---|---|---|
| 50 - 500 kg (Kev Txiav Txim Siab) | 190 / 200 kg steel nruas (UN- pom zoo) | CoA, SDS, TDS; dawb qauv xaiv rau cov neeg yuav khoom tsim nyog |
| 500 - 5,000 kg (Cov khoom siv tsis tu ncua) | 200 kg drums / 1,000 kg IBC tanks | Tus nqi luv nqi; tus thawj tswj hwm tus account tshwj xeeb; kev teem caij tsim khoom ua ntej |
| 5,000+ kg (Ntau / Ntev-Term) | IBC tso tsheb hlau luam / ISO tank / Flexitank / kev cai | Tus nqi qis tshaj rau -unit price; tsau- nqe cog lus; 24/7 technical support |
📦 MOQ
50 kg rau kev txiav txim. Kev kuaj dawb: 500 g - 1 kg nrog tag nrho CoA & SDS rau cov neeg yuav khoom tsim nyog.
🚢 Cov ntsiab lus xa khoom
FOB, CIF, EXW muaj. Ex-Shanghai, Guangzhou, Qingdao, Tianjin. UN 2686 kev ua raws li cov khoom txaus ntshai.
⏱ Lub Sijhawm Teb
Customized quote hauv 12 teev. Hauv - Tshuag: 3-5 hnub ua haujlwm. Customized los yog bulk: 10-15 hnub.
💳 Cov nqe lus them nqi
T / T 30% ua ntej, 70% vs B / L. L / C thaum pom rau kev txiav txim loj. Tsau - nqe lus cog lus rau ntev - cov khoom xa tuaj.
- ✓ISO 9001 · ISO 14001 · OHSAS 18001 tau ntawv pov thawj - vertically integrated ntau lawm nrog QC ncaj qha ntawm txhua theem
- ✓Cov ntaub ntawv xa tawm tag nrho: daim ntawv them nqi lag luam, daim ntawv teev npe, CoA, SDS, TDS, daim nqi ntawm daim ntawv, daim ntawv pov thawj ntawm keeb kwm
- ✓EU REACH, UN GHS, US DOT, thiab IMDG kev ua raws li cov khoom txaus ntshai - muaj nyob ua ntej rau kev tshuaj xyuas kev ua raws cai
- ✓Pharmaceutical qib (Ntau dua lossis sib npaug li 99.5%) nrog impurity profiles, residual solvent analysis, ICH Q7 support, thiab DMF filing help
- ✓Custom ntim: 25 kg, 50 kg, 200 kg steel nruas (UN- pom zoo); 1,000 kg IB; ISO tank / Flexitank rau ntau
- ✓24/7 kev txhawb nqa - roj kev kho mob sib xyaw tsim, coatings neutralization, boiler dej dosing, pharma synthesis queries
Cov lus nug nquag
Cov lus nug txog kev lag luam thiab kev lag luam txog Diethylethylamine los ntawm peb cov neeg siv khoom B2B thoob ntiaj teb.
Diethylethylamine (DEAE) yog dab tsi thiab nws siv rau dab tsi?
Diethylethylamine (DEAE, CAS 100-}37-8) yog ib qho sterically hindered tertiary alkanolamine nrog formula C₆H₁₅NO, los yog N, N-Diethylaminoethanol. Nws cov kev siv tseem ceeb yog: (1) cov kua qaub tshem tawm (CO₂ / H₂S) hauv cov pa roj qab zib, LNG purification, thiab muaj CO₂ capture, qhov twg nws muaj peev xwm thauj khoom siab thiab tsis tshua muaj zog rov ua haujlwm muaj txiaj ntsig zoo; (2) volatile neutralizing amine rau boiler dej thiab chav condensate corrosion tiv thaiv; (3) neutralizing amine rau cov dej coatings, inks, thiab resin systems; (4) Tshuaj thiab tshuaj zoo tshuaj nruab nrab; (5) corrosion inhibitor tivthaiv; thiab (6) surfactant tsev thaiv.
Vim li cas DEAE hu ua "sterically hindered amine" thiab vim li cas nws tseem ceeb rau kev kho roj?
Ob pawg ethyl flanking DEAE's nitrogen atom tsim steric bulk uas tiv thaiv cov nitrogen los ntawm kev ruaj khov carbamate ntsev nrog CO₂ - tsis zoo li thawj amines (MEA) los yog unhindered secondary amines (DEA). Hloov chaw, CO₂ reacts los ntawm hydration los tsim labile bicarbonate intermediates, uas tsa lub theoretical CO₂ loading mus rau ~ 1.0 mol ib mol amine (vs. ~ 0.5 rau MEA carbamate chemistry) thiab tso CO₂ ntawm qis regeneration kub (95–110 degree) vs 1{7} degree. Hauv cov ntsiab lus kev kho roj, qhov no txhais tau tias cov kuab tshuaj ntau dua, qhov ntim me me, lub luag haujlwm reboiler qis dua, thiab qis dua chav noj - tag nrho cov uas txo cov peev thiab cov nqi khiav lag luam rau cov neeg ua haujlwm cog.
Yuav ua li cas DEAE piv rau DMEA raws li ib tug neutralizing amine rau waterborne txheej?
Ob leeg DEAE thiab DMEA yog tertiary amines uas neutralize waterborne txheej resins thiab evaporate thaum tsim zaj duab xis. Qhov sib txawv tseem ceeb yog lawv qhov kub thiab txias ntawm evaporation: DEAE (bp 162 degree) evaporates qeeb dua DMEA (bp 134 degree) thaum lub sijhawm ziab. Qhov kev tso tawm qeeb qeeb ntawm DEAE no muab kev txo qis pH ntau dua thaum tsim cov yeeb yaj kiab, uas muaj txiaj ntsig zoo rau cov txheej txheem txheej txheej rhiab rau pH sai sai, txhim kho lub sijhawm qhib thiab ntws- qib hauv cov txheej txheem vaj tsev thiab kev lag luam, thiab txo qhov kev pheej hmoo ntawm amine blush thiab defects hauv ntau -coat systems. DMEA yog qhov zoo dua thaum cov yeeb yaj kiab hardening thiab siab dua cov dej thaum ntxov yog qhov tseem ceeb; DEAE yog qhov zoo dua rau kev txhim kho daim ntawv thov thiab ntws.
DEAE siv hauv boiler dej thiab chav dej condensate li cas?
Nyob rau hauv chav boiler systems, yaj CO₂ tsim carbonic acid nyob rau hauv lub condensate, tsav pH mus rau 5.5-6.5 thiab ua rau corrosion ntawm condensate pipelines thiab tshav kub exchangers. DEAE raug txhaj rau hauv cov kab hluav taws xob lossis cov dej pub, qhov chaw uas nws volatilizes thiab faib thoob plaws hauv chav thiab condensate system ntawm nws cov vapor siab -kua faib coefficient. Thaum condensing, DEAE neutralizes carbonic acid thiab nce condensate pH mus rau kev tiv thaiv ntau yam (8.5-9.5). Nws qhov kub kub nruab nrab ua kom muaj txiaj ntsig zoo thoob plaws hauv tag nrho cov txheej txheem rov qab, tsis yog ntawm qhov chaw txhaj tshuaj xwb. DEAE yog sib xws nrog hydrazine, morpholine, cyclohexylamine, thiab oxygen scavenger tej pob khoom, thiab yog haum rau siv nyob rau hauv carbon steel condensate systems.
Dab tsi purity qib SinoLook Chem muab rau DEAE?
SinoLook Chem muab DEAE ntawm ntau dua lossis sib npaug rau 99.0% purity (GC assay), nrog rau cov txiaj ntsig zoo ntawm 99.4–99.7%. Cov ntsiab lus dej tsawg dua lossis sib npaug li 0.2% (feem ntau yog 0.08-0.14%), xim tsawg dua lossis sib npaug li 20 APHA (feem ntau Tsawg dua lossis sib npaug li 10), thiab cov seem ntawm qhov hluav taws xob tsawg dua lossis sib npaug li 0.01% (<0.005% typical). A pharmaceutical grade (≥99.5%) is available with dedicated batch documentation including impurity profiles, residual solvent analysis, and ICH Q7 compliance support. DMF filing assistance is available on request.
Dab tsi yog qhov yuav tsum tau khaws thiab tuav rau DEAE?
DEAE muaj qhov taw tes ntawm 55–60℃thiab yuav tsum tau muab khaws cia ua cov kua hluav taws xob hauv qhov txias (5–35 degree), zoo- qhov cua, tawg- thaj chaw pov thawj deb ntawm qhov chaw tshav kub, taws, thiab qhib nplaim taws. Khaws kom deb ntawm cov kua qaub uas muaj zog, muaj zog oxidizers, thiab cov kua qaub chlorides. Siv UN- pom zoo steel nruas lossis IBC ntim; zam tooj liab thiab tooj liab alloys. Hnav cov tshuaj chemical-cov hnab looj tes tiv thaiv (nitrile lossis butyl roj hmab), tsom iav kev nyab xeeb, tiv thaiv lub ntsej muag, thiab tshuaj apron thaum tuav. Siv cov khoom siv antistatic los tiv thaiv electrostatic ignition; pom zoo kom tso pa tawm hauv zos.
Diethylethylamine HS code yog dab tsi?
Diethylethylamine (CAS 100-37-8) raug cais raws li HS code2922.19(amino alcohols - lwm yam, uas tsis yog cov uas muaj cov pa oxygen nkaus xwb - muaj pawg li heteroatoms, lawv ethers thiab esters; ntsev ntawm no). Nco ntsoov lees paub cov cai siv tariff nrog koj lub chaw lis kev lis kev cai hauv zos, vim tias kev faib tawm yuav txawv ntawm txoj cai.
Kuv yuav tso ib qho kev txiav txim los yog thov tus qauv dawb li cas?
Dawb 500 g - 1 kg kuaj nrog tag nrho CoA muaj rau cov neeg yuav khoom tsim nyog. Txhawm rau xaj lossis thov tus qauv:
- Kauj ruam 1:Tiv tauj peb los ntawm email, WhatsApp, lossis lub vev xaib nrog koj cov kev xav tau (ntau, qib purity, ntim, nqe lus xa khoom, lo lus uas peb).
- Kauj ruam 2:Tau txais cov ncauj lus kom ntxaws, kho kom haum tsis pub dhau 12 teev nrog rau tus nqi, lub sijhawm ua haujlwm, thiab kev xaiv logistics.
- Kauj Ruam 3:Thov ib tus qauv dawb (500 g - 1 kg) nrog rau CoA tag nrho rau kev siv tau zoo hauv koj daim ntawv thov tshwj xeeb.
- Kauj Ruam 4:Paub meej tias koj qhov kev txiav txim - peb pab neeg tswj xyuas cov sijhawm tsim khoom, ntim khoom, cov ntaub ntawv, thiab kev thauj khoom thauj kawg - mus rau - kawg.
- Kauj ruam 5:Tau txais koj cov khoom xa tuaj raws sij hawm nrog cov ntaub ntawv qhia txog kev taug qab thiab xa tawm - kev txhawb nqa kev xa khoom thiab kev tswj hwm.
Cim npe nrov: Tuam Tshoj diethylethanolamine (deae) manufacturers, lwm tus neeg
