特级做a爱片毛片免费看_变态 另类 国产 亚洲_中文字幕乱码视频中文字幕14_中文亚洲少妇自拍_无码国产天天一区在线观看_美女在线777在线_美女做爰高潮免费视频_伊人久久久A∨老熟妇色_韩国电影办公室3免费完整版_自拍偷亚洲精品重口

2×100×100mm tungsten copper plate with thickness of 2mm and width and length of 100mm can be widely used in high temperature resistant…

Compared with common Blank plate, it has better performance in roughness and surface quality. And common copper electrode has large consumption, low…

Tungsten copper blank plate is composed of high purity tungsten powder and copper powder, by isostatic pressing, high temperature sintering, melting refined…

W90 tungsten copper plate is composed of 90% W and 10% Cu, its density is up to 16.75g/cm3, hardness reaches more than…

W85 tungsten copper plate is composed of 85% W and 15% Cu, its density reaches(15.90g/cm3), hardness more than HB240, electric conductivity is…

W80 tungsten copper plate is composed of 80% W and 20% Cu so that high hardness and melting point characteristics of tungsten…

W75 tungsten copper plate is composed of 75% W and 25% Cu, which not only has high density (14.50g/cm3), high hardness (≥HB195),…

W70 tungsten copper plate is composed of 70% W and 30% Cu so that it is harder than W50 and W60 rods.…

W65 tungsten copper plate has many advantages, such as excellent electrical and thermal conductivity, uniform texture, high density, high-temperature resistance and arc…

W60 tungsten copper plate is composed of 60% W and 40% Cu, which not only has high density (12.75g/cm3), high hardness (≥HB140),…