日本护士性高潮_日韩精品一区二区三区在线视频_99国产精品久久久久久久日本竹_日韩丝袜av_蜜臀av免费一区二区三区_国产色噜噜噜在线观看精品_用力插用力操_李丽珍被揉高潮_久久91超碰人人澡人人爽_久久99精品一区二区三区三区

ProductsYour location : Products

Rongalite

Rongalite
Molecular formula: NaHSO2·CH2O·2H2O
Executive standard: HG/T2281-2006
Appearance: white bulk or powder
Packing:
1) iron drum package in seal with inner plastic film and net weight is 50kg
2)compound plastic woven bag with inner plastic film and net weight is 25kg or 50kg
Notes: the product should be stored in ventilated and dry warehouse
Uses: rubber synthetic activating agent and decolorizer and heavy metal antidote
Quality guaranteee period: 1 year

 

Item

index

main content(NaHSO2·CH2O·2H2O),% ≥

98.0

solubility

charity or light muddy

sulfide

no black is permitted

smell

no smell or light chives smell


[ Back ]

QR code
歡迎給我們留言 關(guān)閉
姓名:
電話:
E-mail:
內(nèi)容:
 
顯示在線留言