Hai mengwei is made of the international most advanced two-component polymerization process of high elastie fiber made into a new type of environmenta...
Camel hair mainly refers to the hair fiber taken from the bactrian camel body, the color from miky white to brown,of which the light color good uster ...
Graphene is a two-dimensional material with a thickness of only one carbon atom. It is a hexagonal honeycomb fat fim composed of carbon atoms with sp2 ...