欧美黑人狂躁少妇无码中文字幕,人妻无码一区二区三区tv,99精品偷自拍,成人理论片

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

Products

Products

ViewSonic tanning PN

Features:
This product is a new generation of leather tanning agent which is modified on the basis of glutaraldehyde tanning agent. It overcomes the pungent smell of modified glutaraldehyde on the market and the shortcoming of containing a large amount of free formaldehyde. And other active substances were added. As the macromolecular structure to make more than the point of integration, the reaction after the formation of ring-shaped body molecules, and in addition to aldehydes other than the active group, so soft leather, easy oxidation, storage, leather surface meticulous, extensibility Good, with excellent role in dyeing and leveling, into leather wash, sweat and Naisuan Jian, and has a certain role in the filling.

The main performance indicators:
Appearance transparent colorless or pale yellow liquid
Effective content (w / w)> 45%
PH value @ 25 ℃ 6--8
Solubility in water @ 20 ° C Miscible
Specific gravity @ 20 ° C 1.110-1.118 g / ml

Use:
This product is mainly used for leather tanning, chrome tanning leather for pre-tanning, retanning or combination of tanning, but also for fur tanning. It can be used in acidic, neutral or alkaline conditions in an amount of 2 to 5% by weight of shaved leather, and has a pH in the range of 4-5 or 7-8, preferably 7.0. Tanning temperature of 10-40 ℃, the best temperature of 30-35 ℃, liquid ratio between 1-10, the best range of 1-2.5, the turning time of not less than 0.5 hours.
Retanning as an example reference process (to shave leather weight)

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



Home

Home

About us

About us

Products

Products

Contact us

Contact us

主站蜘蛛池模板: 吉林省| 清涧县| 阿克| 永昌县| 遵化市| 子长县| 麻栗坡县| 集安市| 绥江县| 建平县| 武定县| 嘉善县| 盐城市| 个旧市| 普格县| 甘洛县| 龙口市| 蚌埠市| 上杭县| 南靖县| 准格尔旗| 凤凰县| 穆棱市| 双城市| 新津县| 鹤岗市| 安徽省| 漳平市| 郧西县| 汉中市| 朔州市| 鄢陵县| 西昌市| 蓬溪县| 旌德县| 汉中市| 英吉沙县| 仙游县| 报价| 阆中市| 行唐县|