C&N Hongcheng Pipe Fittings Limited completed API Q1 initial Audit Finalization
C&N Hongcheng Pipe Fittings Limited click to preview the standard pdf file: API 5L Pipe Specification.pdf C&N Hongcheng Pipe Fittings Limited is currently in the final stages of its API Q1 audit, scheduled for May 2024. The company has successfully passed the first factory audit conducted by the API team, marking a significant milestone in