Contractor prepared specification Requirement, and SIL Safety HAZOP completed and passed inspection from PTT to pay 10% of the project value promised .
Contractors prepare HAZOP, SIL and Safety Requirement specification completed and passed inspection from PTT. paid 10% of the total value of the contract.
Construction contractors, and HAZOP SIL Safety Requirement specification completed and passed the inspection of the PTT pay 10% of มูลค่าง work according to the contract .