Drill Collar Manufacturer, Drill Pipe, Kellys Supplier - Bobby Special Steel Pipe (China) Co., Ltd.
No.29panlongshan Rd. Jiangyin Hi-Tech Industrial Development Zone, Wuxi, Jiangsu, China
Main products: Drill Collar, Drill Pipe, Kellys, More, Company Introduction, Production Capacity, We're a Sino-German joint venture, completely equipped for manufacturing and exporting of:, -Drill Collar, Non-Magnetic Drill Collars, Spiral Drill Collar, Spiral Drill Collar With Elevator &Slip Groove;
