Raw material Mill certificate re-check and approval, including:

· Steel materials

· Welding rods and welding wires

· Bolts

· Painting

Steel materials Tensile test and dimension measurement approval

When the steel materials arrive factory, we apply dimension measurement and tensile test by our in-house QC persons.

Micrometer

Universal detector

WPS approval before fabrication

Quality control progress during fabrication

Verticality check

Spot weld dimension check

Butt weld width check

Fillet weld foot height check

Fillet weld effective throat check

Weld quality inspection

We perform non-destructive testing (NDT) in accordance with contract documents and applicable welding codes. As part of this process, we ensure that all inspections, test plans and quality manuals are fully documented and maintained.

Quality control progress during fabrication

Pre-assembly is applied to special shape structure or as per client’s requirement.

Anti-corrosion system quality control

Apply ball blasting on primary steel structure components to make sure the surface reach to Sa 2.5 grade.

Pre-coating as required

Painting dry film thickness check