成人午夜兔费观看网站,久久婷婷激情,成人全部免费的a毛片在线看,一级毛片特级毛片免费的,高清毛片免费看,国产特级毛片aaaaaa毛片,五月婷婷丁香六月

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