Check the external shape of welds must satisfy the following requirements: + Weld quality must satisfy according to the design drawings. + Smooth surface, steadily (do not drain overflow, burning feet, co narrow, interrupted), no sudden transition from the surface of the weld to the base steel surface. In the tảitrọng-resistant texture, the surface angle weld must also ensure forward steadily to the steel surface. + Weld metals are dense, no cracks and no defects. Welding mouth must be filled. + The intersecting welds and the disabled have to sign the check. If weld inspection does not meet the requirements, to removing that welds and welding up again, at the same time having to check back.Pipe rack
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