... . 2.According to ISO 9001 2001 Stainless Steel Folding Anchor,stainless steel wedge anchor1. Casting: investment casting ,precision ... steel ,carbon steel ,alloy steel, heat resistant steel ,tool steel ,brass and aluminum ,according to DIN ,EN, ASTM, BS,JCSI.3. Piece numbers: small, medium and large series.4 ... control: According to ISO 9001 2001 Stainless Steel Folding Anchor,Galvanized steel anchor