久久国产精品夜色,久久久久久夜精品精品免费,99久久久国产精品免费牛牛四川,天天爱天天操,北条麻妃国产九九九精品视频,久久国产成人,国产高清在线视频

1) Appearance : white or off-white powder
2) Specific viscosity ( 1% in butanone solution ): 0.1-0.5/0.5-1.0/1.0-1.5/1.5-2.5/2.5-4.0
3) Loss on drying: ≤2%
4) Active: ≥98%
5) Residual maleic anhydride: N/A
6) Packaging: 17kg or 20kg/fibre drum
7) HS code: 3907209090