中文字幕人妻无码乱精品,国产精品扒开腿做爽爽爽a片软件,51精品国产人成在线观看,我,我天天要操你的骚逼

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

亚洲国产剧情在线精品视| 日本一区二区三区中文欧美| 久久夜精品综合激情与五月| 亚洲av永久无码精品一福利| 国产精品美女久久久久a| 果冻传媒和天美传媒精品| 国产一级做a爱视频在线| 久久国产色av免费观看| 日本精品区二区三区高清| 青娱乐无码视频国产一区| 亚洲 色图 欧美 自拍| 无码人妻| 精品美女bbbbxxxx| av天堂亚洲天堂亚洲天堂| 好男人视频精品一二三区| 在线亚洲欧美专区动态图| 国产成人精品综合在线观看| 亚洲第一大偷拍真实网站| 国产精品成人无码免费| 久久精品国产亚洲av水果派| 亚洲电影在线观看| 一本到在线观看视频不卡| 国产婷婷色一区二区三区| 国自产拍偷拍精品啪啪| 日韩精品高清视频在线播放| 国产精品综合av一区二区| 天美传媒mv在线看免费下载安装| 欧美成人鲁丝片在线观看| 亚洲日本高清一区二区三区 | 逼逼爱爱爱无码免费观看| 野花视频在线观看免费| 久久久久久国产精品mv| 亚洲欧美日韩高清在线的| 不卡一区二区三区四区欧美| 国产黄色精品一区二区三区| 亚洲色视频在线播放网站| 大黑吊操B毛片在线播放| 人妻无码久久一区二区三区免费| 亚洲不卡中文字幕无码| 欧美国产精品视频免费三| 蜜臀国产精品久久久久影视|