GB国家标准 GB 8230-1987 环氧酚醛型涂覆的镀锡(或镀铬)薄钢板 GB 8230-1987.Tinplate (or ECCS)coated with the epoxy-phenolic type of lacquers. GB 8230是环氧酚醛型涂膜(或采用其... 01月02日GB 8230 阅读全文