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(1) Check whether the water, electricity, and gas are connected, and all connections are made as required, and they cannot be loosened. Water, electricity, and gas are all dangerous factors in the welding process of seamless rectangular tubes, so be sure to check them before welding.(2) Use relevant
(1) Geometric standard inspection of steel pipeThe outer diameter, wall thickness, curvature, and length of the steel pipe can be inspected on the inspection table with an external caliper, a micrometer, a bending ruler, and a length tape measure.Automatic standard testing equipment (such as automat