羞羞色男人的天堂伊人久久 久草AV导草 浪潮国产AV一区二区熟女 欧美日韩午夜激情

HS740

Trademark:  HS740
Appearance: Transparent liquid
Color (25℃, Fe-Co) : ≤1
Viscosity (s, Grignard tube/25℃): 10-20
NCO% : 6.5-7.5
Solvent:  Ethyl/Butyl
Features: Reaction High activity, fast drying, light color, high gloss, good storage stability.
Recommended uses: Curing agent for various polyurethane paints.