10 # Hlau, 20 # Hlau, Q345B / C / D / E, 12CrMo, 15CrMo, 12Cr2Mo, thiab lwm yam
Seamless Steel Tubes Rau Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob
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