女同事醉酒被迷奷系列在线,久久精品国产亚洲AV高清热,亚洲高清国产拍精品熟女,在线观看国产最新a视频

Key products
Products
N-vinyl-N-methylacetamide;VMA;
Name:           N-vinyl-N-methylacetamide;VMA;
CAS No:           3195-78-6

Appearance: light yellow to colorless liquid

Purity :97%min.

Reflective index: 1.4830-1.4850

Packing: UN approved drum ,UN1993, Class3 ,Packing III
【Back】