Drop in Anchor, Wedge Anchor, Thread Rod manufacturer / supplier in China, offering M8 M10 M12 M16 M20 M24 M30 Stainless Steel 304 Resin Stud Chemical Anchor Bolt, Stainless Steel 304 M8 M10 M14 M12 M16 Chemical Anchor Poliester Studs Anchor Bolt, 4.8/ 8.8/ 10.9/ 12.9 Grade Chemical Anchor Stud Bolt and so on.