久久久只有精品,欧美色射,日韩av在线直播,成人免费在线播放视频,久久久精品国产亚洲,国产精品999在线,亚洲无吗视频

1) Appearance : colorless to light yellow transparent liquid
2) Epoxy equivalent weight: 150-180g/mol
3) Viscosity 25℃: 300-1200mpa·s
4) APHA color: ≤100
5) Water: ≤0.10
6) Packaging: 200kg/internal coating of steel drum
7) HS code: 2910900090