1.alloy seamless steel pipe 2. OD: 6-1260mmWT: 1-60mm Alloy seamless steel pipeAlloy steel seamless pipe/alloy pipe/alloy steel pipe/high-temperature alloy steel pipe/ alloy tube/ASTMA335 standard alloy pipe P22/ ASTM A335 P22 alloy pipe, alloy seamless pipe p22StandardsASTM, BS, DIN, JIS, GB, etc.Grade:Q345A/B, Cr5Mo, 12Cr1MoV, 10CrMo910,,27SiMn, 15CrMo, 30CrMo, 34CrMo4, etcOther standard and ...