Gold Index: 140
Linqing City Ruilong Drill Co.,Ltd. [China (Mainland)]
Business Type:Manufacturer City: Liaocheng Province/State: Shandong Country/Region: China (Mainland)
114mm diameter 6m length with NC31 thread manufacturer&exporter
drill rod
DTH drill rod introductionMaterial of rod body: R780 material Material of connector: 40Cro ,35Crmo,37CrMnMoRod body craft: friction
2016-03-31