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1.Standard: IFI-136;DIN975;DIN938;DIN938;DIN939;DIN940;DIN949;
ASTMA193 B7;ASTM194 B7M;GB/T 897/898/899/900/901;
2.Size: can do it as your requested
3.material:carbon steel,stainless steel;alloy steel
4.Surface: self colour;black;z/p;H.D.G;Dacromet
5.grade:4.8s;8.8s;10.9s;12.9s
Slot thread rods
