国产一级片大全,日韩中文字幕精品,免费看操插,国产伦精品一区二,欧美理论影院,99re在线视频精品,国产精品久久久久久久久动漫

 
  • 松香
  • 松香

    • 0.00
      0.00
商品描述

Main Specifications:

Items

X Grade

WW Grade

Color

Yellowish

Pale Yellow

Correspond to the Standard

Glass Color of Rosin

Appearance

Transparent Solid

Softening Point (R&B)

76

76

Acid Valuemg KOH/g

166

166

Unsaponifiable Matter %

5

5

Ethanol Insoluble Substance %

0.03

0.03

Ash %

0.02

0.02

 

Package: In galvanized iron drums of 225kgs net each.

 

Uses: Mainly made fromvarious kinds of resin acids, gum rosin is an important raw material for soap,papermaking, coating, rubber, resin, electrical appliances and organicsynthesis industries, etc.