- Constructional Auger Drill Tungsten Carbide bits
- 2017-12-03 13:53
- Alloy steel Body, made by material ASTM4142 or 42CrMo,heat treatment with 40-44HRC hardness, has high toughness and wearable character. Tip with above 50 HRC hardness is made from Low press Sintered and Suitable Grade Selected according to the Target...
- carbide tip conical coal mining bits for road header
- 2017-10-10 02:50
- Alloy steel Body, made by material ASTM4142 or 42CrMo,heat treatment with 40-44HRC hardness, has high toughness and wearable character. Tip with above 50 HRC hardness is made from Low press Sintered, and Suitable Grade Selected according to the Targe...
- 2014 hot sale core barrel bullet teeth for piling rigs
- 2017-09-23 03:05
- Alloy steel Body, made by material ASTM4142 or 42CrMo,heat treatment with 40-44HRC hardness, has high toughness and wearable character. Tip with above 50 HRC hardness is made from Low press Sintered, and Suitable Grade Selected according to the Targe...