不锈钢工业管标准： ASTM A312...
不锈钢光亮三通 (BA, EP)材质：...
不锈钢光亮弯头 (BA，EP)材质： T...
镍基合金管 (BA)牌号： N022...
C276管材牌号：UNS N10276外...
Incoloy 800H 管材等级：UN...
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