Room 1606, Floor 16, Building 402, Baiziwan Xili, Chaoyang District, Beijing
Friendship Group is a comprehensive service company which sets research and development, production, sales in one. It focus on iron steel products industry chain. The seamless pipe, are the core product. Chinese industry's most competitive enterprises.The group was founded 1999, currently has six subordinate ...
casing,Tubing,line pipes,cylinder pipes,Boiler Tube,API 5L, GB5310, API 5CT, my, stainless steel pipes, Magi, Line Pipe, Drill Stem elements, Kelly, Stabilizer, Spiral integral heavy weight drill pipe, Integral heavy weight drill pipe, Cross over sub, Drill pipe, Spiral Drill Collar, Drill Collar, Boiler tubes, Drill pipe, Tubes for liquefied gas bottles, Tubes for high-pressure chemical fertilizer equipm, Tubings and Casings, Tubes for Perforation Devices, Fluid Transportation Pipes, Tubes for ship-building, DRADE 320, GRADE 410, Geological drilling pipes, Grade DZ60, Grade STM-R780, Grade DZ50/ DZ55, Grade DZ40, Cementing Tools and casing accessories tools, Casing(tubing ,pipe)couplings, Float shoes/Float collars, Cementing plugs driiable wth PDC bit, mm, Precision steel tubes,