TetraborBoron carbide一碳化四硼Boron carbideCarbon tetraboride碳化硼碳化硼溅射靶, 50.8mm (2.0in) 直径 x 6.35mm (0.250in) 厚Boron carbide sputtering target, 50.8mm (2.0in) dia x 6.35mm (0.250in) thickBoron carbide sputtering target, 76.2mm (3.0in) dia x 3.18mm (0.125in) thickBoron carbide sputtering target, 76.2mm (3.0in) dia x 6.35mm (0.250in) thick碳化硼溅射靶, 76.2mm (3.0in) 直径 x 6.35mm (0.250in) 厚碳化硼溅射靶, 50.8mm (2.0in) 直径 x 3.18mm (0.125in) 厚碳化硼溅射靶, 76.2mm (3.0in) 直径 x 3.18mm (0.125in) 厚Boron carbide sputtering target, 50.8mm (2.0in) dia x 3.18mm (0.125in) thick