Feature: 1. Steel grade: 20G, 20MnG, 15MnG, 15MoG20MoG, 12CrMoG, 12Cr2MoVG 2. Specification: Feature: 1. Steel grade: 20G, 20MnG, 15MnG, 15MoG20MoG, 12CrMoG, 12Cr2MoVG 2. Specification: a) O.D.: 16mm-108mm b) Thickness: 1.3mm-16mm 3. Standard: GB5310-1995 Packing: As per customers' requirements Seamless Steel Pipe for High Press Boiler