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中华人民共和国国家标准起重机械危险部位与标志ＧＢ１５０５２－９４Ｌｉｆｉｎｇａｐｐｌｉａｎｃｅｓ－Ｄａｎｇｅｒｏｕｓｐｏｓｉｔｉｏｎｓａｎｄｓｉｇｎｓ１９９４－０５－０３发布（国家技术监督局）１９９５－０３－０１实施１主题内容与适用范围本标准规定了起...
National Standards of People’s Republic of China lifting machinery dangerous parts and signs GB15052-94Lifingappliances-Dangerouspositionsandsigns1994-05-03 release (State Bureau of Technical Supervision) 1995-03-01 implementation 1 subject content and scope of this standard ...