Haiyan Mengshi Screw Co Ltd A manufacturer of self-aligned screw, self-drilled screw triangle-locking screw and fibreboard screw.
http://www.msscrew.cn/
Tangshan Xinfeng Screws Co Ltd A manufacturer of collated screws, self-drilling screws, drywall screws and more.
http://www.xfscrews.com/
