人人妻人人爽人人做夜欢视频九色-日韩人妻无码一区二区三区综合部-亚洲日韩激情无码一区-国产精品久久久久久久妇-五月丁香六月狠狠爱综合-131美女爱做视频

Zhengda takes "quality and credit as number one priority", and establishes "human-oriented" management system. Over years' hard working, Zhengda has experienced great development; thus we now have the good abilities to produce all kinds of quality knitting yarns and round knitting machine-woven fabrics. Our products are well sold in all the places of China as the materials of garment, weaving and foreign trade companies and enterprises, and the demand exceeds supply for years.