1. The principle requirement of spiral steel pipe stacking is to stack according to varieties and specifications under the premise of stable stacking and ensuring safety. Different types of materials should be stacked separately to prevent muddling and mutual erosion;2. It is forbidden to store item

(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