国模冰莲自慰肥美胞极品人体图,丰满女老板bd高清a片,性做久久久久久久久,婷婷成人丁香七月综合激情

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

泰宁县| 安溪县| 安岳县| 雅安市| 盐源县| 蓝山县| 高州市| 鹤壁市| 肥西县| 股票| 都昌县| 四平市| 承德市| 石渠县| 临城县| 芦溪县| 保靖县| 永川市| 朝阳市| 苍溪县| 松潘县| 蒲城县| 六枝特区| 塔城市| 香河县| 丁青县| 崇左市| 唐河县| 垫江县| 长泰县| 镶黄旗| 斗六市| 孟津县| 靖宇县| 乌苏市| 齐河县| 翁源县| 和林格尔县| 申扎县| 黑龙江省| 安吉县|