Hejian Zhongcheng Drill Bit Manufacturing Co.LTD was established in 1997. Our company is a privately owned company. We have grown into leading manufacturer of tricone bit and supplier high quality drilling tools & equipment. ...
Address：Fuyingmen6,Beihuan roadBusiness type：Manufacturer, Trading Company
Humfrey Industrial Repairs offers custom machining, prototyping, production repairs of industrial equipment, built machinery, improvments, For the Oil & Gas and Waterwell drilling industry we rebuild rotary swivels, ...
Address：5703 6st, Calgary, CanadaBusiness type：Manufacturing