航空航天系列.FE-PL1502(25CrMo4)型钢.650MPa≤Rm≤850MPa.棒材.De≤150 mm 是非强制性国家标准,您可以免费下载预览页
csnumber=42896DIN 51130:2014: Testing of floor coverings – Determination of the anti-slip property – Workrooms and fields of activities with slip danger – Walking method – Ramp test.http://www.nmp.din.de...
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