Gold Index: 244
Shandong Rock Drilling Tools Co., Ltd [China (Mainland)]
Business Type:Manufacturer Country/Region: China (Mainland)
extension rod
the special heat treatment for the rod's easy break parts, full carburizing of the steel rod, to improve the steel rod's bending resistance.
2009-11-22
Button bit
The skirt body using the material of 45CrNiMnV(Chromium, Nickel, Manganese, Vanadium)alloy steel, taking the heat-inlay fasten buttons technology.