The fish collagen has special application in the photographic negative, the biological material and food industry.

鱼胶原蛋白在照相底片，生物材料和食品行业有特殊的应用。

youdao

The fish collagen has special application in the photographic negative, the biological material and food industry.

鱼胶原蛋白在照相底片，生物材料和食品行业有特殊的应用。

youdao