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

色综合久久蜜芽国产精品| 精品人妻无码一区二区三区| 日韩午夜理论免费TV影院| 欧美精品色婷婷五月综合| 国产成人无码AV| 久久综合九色综合欧美狠狠| 日本精品一区二区三区试看| 400部精品国偷自产在线| 在线成人www免费观看视频| 欧美大胆a级视频| 免费网禁拗女资源网视频| 成年免费a级毛片| 国产精品沙发午睡系列99| 日韩AV在线观看| 国产AV无码专区亚洲AV毛网站| 免费a级毛片无码专区| 国产精品丝袜黑色高跟鞋 | 妓女精品国产噜噜亚洲AV| 国产成人久久精品激情| 亚洲国产精品成人久久久| 亚洲精品午夜国产va久久成人| 国产成人精品白浆久久69| 色窝窝无码一区二区三区色欲| 人妻杨丽的无奈献身| 亚洲国产精品国自产拍AV| CHINESE国产XXX实拍| 一区二区三区| 极品教师在线观看免费完整版| 国产真人无遮挡作爱免费视频 | 无码国产伦一区二区三区视频 | 日本黄a级a片国产免费| 国产精品99精品无码视亚| 色欲AV人妻精品一区二区直播| 天堂AV无码一区二区三区| 亚洲AV无码一区二区乱子伦AS| 国产乱国产乱老熟300部| 亚洲av成人无码久久www| 色狠狠色噜噜AV天堂一区 | 性欧美videofree另类| 欧美一区二区三区视频在线观看| 国产欧美一区二区精品久久久|