成人无码视频,可以在线观看大黄片视频,国产不良视频在线观看,日日夜夜婷婷免费视频

JIANGSU JINSHA FASTENERS CO.,LTD.

Our factory has buildings of 20000 square meters, and we have annealing furnace, wire-drawing machines, cold-forging machines, tapping machines and heat-treatment line. We mainly produce high-strength hex and heavy hex nuts with grades of class 6,8,10,2H,10S etc.

• Booth No：2E337