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

中文有码国产精品欧美激情| 日本视频中文字幕在线播放| 午夜成人理论无码电影在线播放| 在线观看视频日韩一区二区| 欧美天天综合色影久久精品| 日本在线免费观看国产精品| 亚洲精品96欧美一区二区| 日本少妇熟女乱码一区二区| 无码人妻精品一区二区三区不卡| 亚洲欧美完美维纳斯日韩| 爆乳2把你榨干哦ova在线观看| 美国大片在线观看| 超碰超碰超碰超碰在线观看| 浪潮国产亚洲精品一二区| 在线观看伦理片| 色综合欧美综合天天综合| 亚洲国产精品久久性色av| 国产亚洲欧美日韩第一区| 午夜.dj高清在线观看免费7| 波多野42部无码喷潮在线| 日本中文字幕在线视频观看 | 无码精品a∨在线观看免费| 色偷偷一区二区无码视频| 国模一区二区三区私啪啪| 丰满少妇一区二区三区专区| 好好热日本在线视频观看| 日本韩国欧美一区二区三区| 国产成人三级a在线观看| 无码少妇一区二区三区| 国产精品久久久久电影院| 欧美三级精品一区二区三区| 亚洲高清无码在线观看了| 国内国外日产一区二区| 久久av喷潮久久av高| 无码乱码av天堂一区二区| 在线视频一区二区在线视频| 久久久不卡国产精品一区二区| 久草久热这里只有精品6| 日本一区二区三级在线观看 | 日本成人精品一区二区三区| 国产精品成人久久久久久久|