Bule Zinc Coated Drywall Screw Tianjin Ruiya Internation St Co., Ltd. Base Info Material：Carbon SteelType：Hexagon HeadHead Style：RoundConnection：Common BoltGrade：12.9Trademark：E-starOrigin：China Mainland Description Pre：Screw Shank Diamond Point Coil Nail Next：Screw Shank Blunt Point Coil Nail
