回复:国标:GB6060.1_表面粗糙度比较样块_铸造表面
终于在茫茫网海找到了它们4个8íWHâr¨"ä4bbs.3c3t.comئBÍÆ8>Éü
GB 6060.18íWHâr¨"ä4bbs.3c3t.comئBÍÆ8>Éü
GB 6060.48íWHâr¨"ä4bbs.3c3t.comئBÍÆ8>Éü
GB 6060.58íWHâr¨"ä4bbs.3c3t.comئBÍÆ8>Éü
GB/T 113508íWHâr¨"ä4bbs.3c3t.comئBÍÆ8>Éü
拜谢.....................8íWHâr¨"ä4bbs.3c3t.comئBÍÆ8>Éü