fanjia.org.cn-国产欧美日韩精品丝袜高跟鞋,搡老熟女老女人一区二区,少妇又紧又色又爽又刺激视频,小sao货水好多真紧h无码视频

Vitamin K3 Leather auxiliaries Chromium salts Cement additives

As a main form of Vitamin K, it can effectively change into K2 in the animal body, and plays a role

We now produce three series of leather chemicals: tanning agent series, fatliquor series and auxi

Chromium salts mainly includes sodium dichromate, potassium dichromate, chromic anhydride and Chrom

HP-300 Concrete pumping agent is a Naphthalene-grouping & high efficient water reducing agent,

Subsidiaries:
Products

Technical index

Type: basic chromium sulfate , aluminium sulfate, Mimosa extract

Appearance: brown black liquid

Chromium trioxide %: 5 - 6

Cr6+: ≤2.0 mglkg

Solid%: 30 ± 2

PH Value (10%) : 2.0 - 3.0

Ionicity: cation

Range of application

Can be used in the prophase tanning of heavy leather, and can be used for tanning and retanning of light leather .

Application reference

6%一8% of weight of leather for tanning, Dosage of retanning is 3%.

Packing, storage and transportation

60Kg plastic drum, This product is a non-dangerous goods. Its shipment should be according to general cargo.

Shelf life

one year in cool and dry place