制冷剂R509A制冷剂R509A组成成分摩尔百分比：R22占63.079%,R218占36.921%质量百分比：R22占44%,R218占56%R509A制冷剂参数名称：R509A，HCFC/FC-509A分类：混合...制冷剂/2023-06-09/1012 阅读0 评论
