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astm a 569 astm a 570
astm a 569 & astm a 570
hello, both astm a 569 & astm a 570 are specs. for commercial grade steel sheets. can anyone tell me the available properties (yield and ultimate strengths) of both specs? thank you, jeff |
所有的时间均为北京时间。 现在的时间是 11:41 PM. |