KOOYUAN yana ɗaya daga cikin ƙwararrun masana'antun peptides da masu siyarwa a China. Idan za ku saya ko siyar da babban ingancin peptides a cikin haja, maraba don samun jerin farashi da samfurin kyauta daga masana'anta. Hakanan, akwai sabis na musamman.

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HCG

Human chorionic gonadotropin (...

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