亚洲二区三区四区五区-一区二区三区四区蜜桃av-91av在线观看不卡-久久五月天丁香婷婷91

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

金发大白屁股大乳房肛交| 日本一区二区不卡区在线观看 | 日本欧美亚洲日韩在线视| 中文字幕免费一区二区三区乱码| 四十路熟妇北条麻妃| 男人猛进出女人下面视频| 欧美翘臀一区二区三区| 视频一区二区三区高清在线| 操东北老太太逼视频痒死了| 操逼真好视频免费看| 把女人弄爽特黄A大片片| 大鸡巴日8岁小处B| 欧美论理一区二区三区| 欧美一级成人观看| 国产黄桃AV一区在线观看| 一般男女中文字幕在线| 美女叼嘿吃精淫淫网| 国产使劲操在线播放| 2020亚洲欧美国产日韩| 外国小嫩逼操逼视频| 殴美大鸡巴在视频| 老肥婆熟女乱伦导航| 日本女人扣逼美穴| 女高潮淫荡视频在线播放| 日本动漫人妻作爱大尺度| 亚洲中文字幕在线播| 国产av又黄又爽又刺激| 国产成人丰满在线| 免费看美女隐私操逼自慰| 国产精品操白虎美女视频| 少妇bbbbb撒尿视频| 白丝美女鸡巴操出水| 高清性色生活视频| 老肥婆熟女乱伦导航| 日本高清在线不卡一区| 69成人堂在线免费观看| 91大神激情大长腿在线| 国产 精品 日韩 欧美| 一区二区狠狠色丁香久久婷婷| 18禁动画在线免费观看| 成人午夜性A级毛片视频|