• API 5CT Certificate

  • API 5L Certificate

  • Production License of Special Equipment

  • ABS PDA Certificate

  • ABS PDA Certificate

  • DNV Certificate

  • LR Certificate

  • CCS Certificate -Carbon and Carbon Manganese Pressure Pipes

  • CCS Certificate -Line Pipe and Carbon Steel Pipe for High-temperture Service

  • CCS Certificate -Pipes for Structural Purposes

  • PED Certificate

  • CPR Certificate

  • JIS Certificate