Trademark: Shougang Mill Commodity: Low price Seamless steel pipe Short Delivery Time: 25~45 days Packing: ... Test etc), Exterior Size Inspection, Nondestructive Test (Ultrasonic flaw detector, Eddy. current flaw detector), Hydrostatic Test. Seamless steel pipe: ASTM A 53 ... . Application: Structural using, welding, and any other constructing uesage. Low price Seamless steel pipe