国产在线国偷精品免费看,H高潮娇喘抽搐A片国产麻豆,国产真人无码作爱免费视频APP,国产综合一区二区三区

中文版
Welcome to Hubei Microbial Control Biological Technology Co., Ltd

Products

Products

ViewSonic tanning GT

Features:
This product is a new generation of leather tanning agent developed on the basis of the modified glutaraldehyde tanning agent. It overcomes the shortcomings of the modified glutaraldehyde to stimulate the smell and adds other active substances. The formed macromolecule structure contains aldehyde Base, hydroxyl, carboxyl and other active groups, with the combination of collagen richer, with more points, into a soft, full leather, leather surface meticulous, washable, perspiration, acid, storage, low formaldehyde content .

The main performance indicators:
Appearance transparent colorless or pale yellow liquid
Active & gt; 50%
PH @ 25oC 5--7
Solubility in water @ 20oC miscible

Use:
This product is mainly used for fur and leather tanning. For the fur tanning, the water 30L / Zhangpi, new pool ViewSonic tanning GT dosage 7 ~ 10g / L water, the old pool ViewSonic tanning GT dosage of 3 ~ 4g / L of water, PH6.5 ~ 8.5 ,, the best tanning temperature of 35 -40 ℃, tanning time of 40 to 48 hours. For leather tanning, the amount of 2-5% (to shave leather weight), PH6 ~ 8.5. The best tanning temperature is 30-38 ℃, liquid ratio in 1-2.5, the turning time of more than 0.5 hours.

Packing: 25KG; 125KG; 200KG plastic drums



Home

Home

About us

About us

Products

Products

Contact us

Contact us

无码国产69精品久久久孕妇 | 暖暖 在线 日本 免费 中文| 男人狂躁进女人免费视频vr | 一本大道AV伊人久久综合| AV无码人妻中文字幕| 国产午夜福利精品一区二区三区| 无码一区二区三区在线观看| 亚洲AV无码乱码在线观看无码| 人妻无码熟妇乱又伦精品视频| 国产剧情av精品迷奷| 国产精品无码V在线观看| 成人性生交大片免费看中文| 亚洲午夜精品a片一区二区无码| 免费真人视频网站直播下载| b站免费版入口| 精品无码AV一区二区三区| 欧美一区二区三区成人片在线| 欧美人禽性动交异族另类| 无码人妻精品一区二区三区99性| 一本一道波多野结衣AV一区| 国产一区二区在线观看| 丝袜足控一区二区三区| 久久人妻av无码中文专区| 日本无码小泬粉嫩精品图| jiapanese50欧美熟妇| 内射人妻无码色av麻豆| 成人精品一区二区三区中文字幕| 国产特级毛片aaaaaa| 欧美丰满熟妇bbbbbb| 欧美丰满熟妇xxxx性大屁股| 久久免费看少妇高潮a片特无毒| 国产在线观看| 精品无人区一区二区三区| 精品久久久久久无码人妻蜜桃 | 自拍偷在线精品自拍偷无码专区| 精品黑人一区二区三区| 国产精品麻豆成人AV电影| 国产啪亚洲国产精品无码| 精品国产精品国产偷麻豆| AV亚洲产国偷V产偷V自拍| 久久久久久久99精品国产片|