Purchase Qty. Reference FOB Price
10-49 Pieces US$3.90
50-99 Pieces US$3.50
100+ Pieces US$2.99
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. ...