中文字幕精品国产,夜夜操网站,国产精品久久久久久久久久综合,久久福利视频网,天天躁日日躁狠狠很躁2023,日韩av自拍偷拍,国产精品白嫩极品美女视频

1) Appearance: colorless clear viscous liquid
2) Concentration (dry content): 50% (aqueous solutions) or 70% (ethanol solution)
3) Viscosity 23℃: 20000-25000mpa·s
4) K value: 45-55
5) Iodine color: ≤15
6) Tg ≈ -49℃
7) Packaging: 20kg or 180kg steel drum
8) UN code: N/A PG: N/A Hazard class: N/A
9) HS code: 39059900