ygs67 发表于 2015-6-18 09:42:51

ASTM A523-96(R12)

ASTM A523-96(R12) Standard Specification for Plain End Seamless and Electric-Resistance-Welded Steel Pipe for High-Pressure Pipe-Type Cable Circuits

admin 发表于 2015-6-23 11:40:14

谢谢您的分享,金币已奖励!
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