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1.¤¤°ê:QBe2,QBe1.7

2.¬ü°ê(ASTM):C17200, C17000

3.¬ü°ê(CDA):172, 170

4.¼w°ê(DIN):QBe2, QBe1.7

5.¼w°ê(¼Æ¦r«Y²Î):2.1247, 2.1245

6.¤é¥»:C1720, C1700