Min. Order Reference FOB Price
10 Pieces US$5.00 / Piece
Product Description
Foundation Drilling Tools Types as below: B47K-17H, B47K-19H, B47K-20H, B47K-22H, 3050,3060,3065,customers' requirement etc. 1. Alloy steel body, made by material ASTM4140 (42CrMo) or ASTM5140 (40Cr), heat treatment with HRC38-42 hardness, has high toughness and wearable character. 2. ...