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20MoG无缝钢管022-26626499
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20MoG无缝钢管022-26626499
20MoG无缝钢管,无缝钢管,无缝管,钢管
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执行标准:GB8162-1999, GB8163-1999, GB3087-1999, GB5310-95, GB5310-95, GB9948-88, GB6479-86, GB5312-1999 , GB18248-2000, GB17396-1998 , ASTM A106,ASTM A53
执行标准:GB8162-1999, GB8163-1999, GB3087-1999, GB5310-95, GB5310-95, GB9948-88, GB6479-86, GB5312-1999 , GB18248-2000, GB17396-1998 , ASTM A106,ASTM A53