Gold Index: 984
Shanxi Weigao petroleum Drilling Tools CO., LTD [China (Mainland)]
Business Type:Manufacturer City: Taiyuan Province/State: Shanxi Country/Region: China (Mainland)
non-magnetic drill collar for sale
3 1/8-11
It's made from N1310 low carbon alloy-steel, refined and forged by strict chemical analysis to reach its mechanical properties.
2013-12-31
spiral driil collar for sale
3 7/8-11
It's processed with three right-hand spiral grooves on the outer cylindrical surface of the circle drill collar, in order to reduce the contacting are
Shanxi Weigao Driling Tools
89-203
Description: It's made from rolled or forged AISI4145H chrome-molybdenum steel. The content of chemical composition and microelement is controlled.