? ? ? Drill pipe quality control: a) Before order to be confirmed, the raw material of pipe body and tool joint should be booked from famous big steel enterprises in China b) Raw material’s size, quantity, length, mechanical property are checked by our QC staff and factory own laboratory c) Every drill pipe has nondestructive inspection , cleaned and thread oil before packing. d) Before delivery clients could send one QC or point the third party to check the quality such SGS, BV or others ? Drill pipe usage notes: 1. New drill pipe should be pasted thread oil before connection 2. Make up and break at least 3 times before drilling 3. Hard bending and plastic coating can be processed according to clients’ special requirements Certification:
1.?ISO?9001:?2008
2.?API?5DP-0011 3.?GOST?No.:?1739641 ?