Founded in 2002, China Chiheng Valve Co., Ltd. is a specialized half pipe manufacturer and sale. We have a modernized staffs of tech research and product development, ISO9001 certificated, and manufacturing adopts advanced domestic and foreign standards such as GB, API, JIS, DIN, BS, NF and ANSI. Our oem drill pipe products are widely used in valve fittings, pipeline welding and petroleum, chemical, power and city pipeline networks.

Sram 7.0 Half Pipe Shifter Set
Sram Half Pipe shifters allow shifting from more area on the handlebar.
Includes Quick view mechanical gear indicator.
ESP 1:1 Actuation Ratio technology for light precise shifting,
SRS speed release spool indent shifting which yields
an enhanced mechanical feel and light precision indexing.
Includes cables.
Type: 9 Speed / Micro-friction

Drill Pipe
Visual Thread Inspection.
Thread Profile Gauge.
Electromagnetic, Ultrasonic or combined EMI/UT Pipe body inspection
Fully Automated External Shot-blasting capable of Swedish standard SA 2.5 finish,
on Drill-pipe all sizes, Drill-collars ≤ 8” and Hevi-Wate all sizes.
Internal/External high pressure water jetting.
Application of Internal/External coatings.
Magnetic particle inspection or Dye penetrant inspection of end connections.