... pipe prime quality and competitive price Material: E75, X95, G1105, S135 Size (OD) 2 3/8" - 6 5/8" Grade E ... treatment, hot straightening, could straightening, ultrasonic inspection on pipe body and pipe end, magnetic particle inspection, friction welding, seam inspection ... raw material, magnetic particle inspection to pipe end, ultrasonic inspection on pipe body, inspection on weld seam linearity ...