C&N HONG CHENG Passes API Q1 Annual Audit.
As a manufacturer dedicated to delivering superior piping solutions,HEBEI HONG CHENG PIPE FITTINGS CO.,LTD. is committed to continuous improvement. We are happy to share that we have successfully completed our annual API Q1 audit. click to preview our AQP Q1 certification file: HEBEI HONG CHENG PIPE FITTINGS CO., LTD Certificate Q1-5488 API C&N ALLOYPIPEFITTING About the