From steel billet and other raw material, chemical components analysis shall be done, in compliance with Standard Specification. Visual inspeciton is also taken, to prevent the defects, such as pit, crack, blowhole on surface or subsurface.

To ensure product quality, during and after the production certain pipe inspection and non-destructive testing are performed on the body & weld of the pipe. These pipe inspection will check whether any physical defects are present in the pipe/weld, which may affect its performance during the service. These testing including Flux leakage examination or Magnetic flaw detection, Eddy current, Ultrasonic – can be done on full body or only for weld seam, Radiography (Only for Weld), Magnetic particle test for pipe ends & weld seam, Positive Material Identification.

Pipe bundles are wrapped by fabric layer to protect surface coating. Each bundle of pipes is tightened by 8 steel straps, with 3 straps at each end and 2 straps in the middle. Then 2 nylon slings are banded for crane loading. Pipes under OD508mm are packed by individual bundle. The max diameter of a bundle is 1100mm, with max weight of 2000kg for easy loading. Precision tube, fittings and valves are additional foiled by polyethylene film, and then packed in plywood boxes and pallets.