Customer duhzawng chungchangah rilru tha leh hmasawn tak neiin, kan corporation hian consumer-te duhzawng tihhlawhtlin nan kan thil zawrh quality a tichangtlung reng a, China Wholesale China Mudanjiang Fengda H2c2o4 99.6 Industrial Grade Dihydrate Price Ethanedioic Oxalic Acid, Our business maintain safe and sound business himna, rintlakna, boruak mamawh, leh thil thar siamna lam a ngaih pawimawh zual hle thutak leh rinawmna nena inzawm tlat, kan thil lei duhte nena hun rei tak inzawmna neih reng theihna tura puitu.
Which has a positive and progressive attitude to customer’s desire, kan corporation hian consumer-te duhzawng tihhlawhtlin nan kan merchandise quality a tichangtlung reng a, safety, reliability, environmental demands, leh innovation of , Chubakah, kan solution zawng zawng hi quality sang tak neih theih nan hmanraw changkang tak tak leh QC procedure khauh tak hmanga siam a ni. Kan bungrua i duh chuan min rawn biak hreh lo ang che. I mamawh phuhruk turin theihtawp kan chhuah ang.

Zawhna Zawh fo thin

Ṭanpuina i mamawh em? I zawhna chhanna tur chuan kan support forum-ah hian lo lut ngei ang che!

Kan logo hi product ah hian kan print thei ang em ?

Kan ti thei ngei ang. I logo design min rawn thawn mai rawh.

Order te te i pawm em?

Awle. Retailer tenau emaw, sumdawnna bul tan mek emaw i nih chuan,I bula seilian kan inpeih tak zet a ni. Tin, hun rei tak chhung inzawmna nei turin in thawhpui kan beisei bawk.

A man chu engtin nge ni ang? A man tlawm zawkin i siam thei ang em?

Customer hlawkna hi kan ngai pawimawh ber fo thin. Price hi condition hrang hrang hnuaiah negotiable a ni a, man tlawm ber i hmuh theih nan kan tiam a che.

Free sample i pe em?

Kan thil siam leh service i duh chuan positive review min ziahsak thei hi kan lawm hle a, i order leh hunah free sample thenkhat kan pe ang che.

A hun takah i deliver thei em?

Of course!kum tam tak chhung chu he line-ah hian kan specialise a,customer tam tak chuan min deal a, a chhan chu a hun takah thil kan rawn thawn thei a, thil chu top quality-ah kan dah thei a ni!

China rama i company leh factory te hi ka tlawh thei ang em?

Ngei ngei. China ram Zibo-a kan company tlawh turin kan lawm hle a ni. (Jinan atanga 1.5H drive kalna)

Engtin nge order ka siam theih ang?

Order information chipchiar tak dawng turin kan sales representative tu hnenah pawh zawhna min thawn thei a, detail process kan sawifiah ang.Oxalic acid Carbon Monoxide Coupling Method
Oxalic acid Liquid-phase hmanga inzawmna siam dan
Hetiang method hian a tir lamah chuan PdCl2–CuCl2–CuCl chu catalyst atan hmangin carbon monoxide, oxygen, leh ethanol te chu 12 MPa leh 115 °C-ah liquid-phase catalytic coupling reaction hmangin diethyl oxalate siam a ni. alkyl nitrite awmnaah ethanol (or butanol) leh carbon monoxide leh oxygen coupling reaction kalpuiin diethyl oxalate (or dibutyl oxalate) siam turin Pd/C chu catalyst atan an hmang a ni. Reaction equation inmil tak takte chu:
4CO+4C 2H 5 OH+O 2=2(COOC 2H 5 ) 2+2H 2O
4CO+4C 4H 9 OH+O 2=2(COOC 4 H 9) 2+2H 2O