国产亚洲欧美日韩在线三区,换着玩人妻hd中文字幕在线,丰满人妻无奈张开双腿AV,成片免费观看视频大全,成人免费无码不卡毛片,久久精品无码中文字幕老司机,日韩熟女精品一区二区三区,国产婷婷综合在线视频,日本一卡2卡三卡4卡网站,日本高清色视频免费

Polyether F-6

Guoli Chemical

Chemical composition:acryloyl polyoxyalklerher

Technical index:

Appearance: Transparent yellow liquid

Color: ≤80(Pt-Co)

Hydroxyl value: 45±8 mg KOH / g

Acid value: ≤0.3mg KOH / g

Double bonds: ≥0.5mmol / g

Water: ≤0.5 % (wt %)

Packing and storage:200kg iron drum, 50kg plastic barrel. shelf life: two years.

Home

Home

News

News

About us

About us

Product

Product

Contact us