To finish, polish with chrome or metal polish using a soft cotton cloth. 用柔軟的棉布去整理，拋光鉻或者金屬。
The material and technology of manufacture of screw slag removre of double metal high Cr castiron and carbon steel have been investigated. 研究了制造高鉻鑄鐵碳鋼雙金屬復合排渣器的材料與工藝。
滬公網(wǎng)安備 31011502000490號
電信業(yè)務(wù)許可證編號：滬B2-20190700
