the leading manufacturer of fasteners specializing in roofing and construction screws. Our fasteners are made from well-managed procedures using state-of-the-art technologies and *0 years of technical knowledge. Specialize quality control technicians ensure our fasteners passes stringent QC checks before delivery and a dedicated team of sales and PR support team keep our customers satisfied with outstanding services. Contact Now Contract Manufacturing:OEM Service Offered ,Design Service Offered,Buyer Label Offered