Detailed Product Description Detailed Product Description 1. Item: square & rectangular hollow section2. Standard: GB, ASTM, BS, JIS, 3. Material: Q195, ... delivery such as water, gas and oil, chemical fertilizer pipe, structure pipe, etc.6. Packing: in bundles or break bulk ... are specialized in the supply of ERW steel pipe, seamless steel pipes, rectangular steel pipes. We supply steel as the ...