The present state of non asbestic friction material production in China and requirement in early years of 21st century are presented.
分析了我国非石棉摩擦材料生产
现状及21世纪初需求量;
,不燃
The present state of non asbestic friction material production in China and requirement in early years of 21st century are presented.
分析了我国非石棉摩擦材料生产现状及21世纪初需求量;
明：以上例句、词分类均由互联网资源自动生成，部分未经过人工审核，
内容亦不代本软件观点；若发现问题，欢迎向我们指正。
