在线国产亚洲观看_日韩中文在线欧美日韩一区二区_欧美性爱黄在线观看_4399视频在线观看免费完整版_中文字幕亚洲欧美无线码一区_精品无码午夜福利理论片_最新国产麻豆福利在线观看_久久精品中文字幕视频_国产av伦理三区_337p日本欧亚洲大胆胆噜噜

Tungsten Alloy Counterweight
High density alloy is based on W (W’ s mass fraction is 80% 97%), and added with Ni, Fe, Mn, Co, Cu, Mo, Cr and other elements alloyApplication: vibrating motor, mobile phone, electric toothbrush, massager, golf fishing gear, vehicle, etc.

Features Applications Notices

Related products