This study on the tanning and retanning properties of LB type protein syntan respectively was synthesized by the collagen fiber hydrolysates with phenol sulphonate and aldehydes.
本文分别研究了LB型蛋白鞣和复鞣性能,该鞣剂由胶原纤维水解物通过苯酚磺化产物和醛类缩合改性而成。
Super Collagen Type I & III is 100% pure collagen protein that provides building materials for growth and maintenance of a healthy body.
超级胶原蛋白I型及III是100%纯胶原蛋白,可提供健康的身体的保养材料。
Super Collagen Type I & III is 100% pure collagen protein that provides building materials for growth and maintenance of a healthy body.
超级胶原蛋白I型及III是100%纯胶原蛋白,可提供健康的身体的保养材料。
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