... 3>Application:heating,lighting, 4>Grade:W1,W2,WAL1,WAL2 Tungsten wire introduction1, Diameter: 0.01mm~2.00mm 2, Grade: W1, W2 ... .92-Manufacturing grid side rod of electron tube and reaming tungsten wire Certification Processing Equipment SHAANXI YUNZHONG INDUSTRY DEVELOPMENT CO.,LTD Add ... -15102955063Fax: +86-917-3372200Skype :jessica.yunch Trade manager ID : cn1001507034 tungsten wire price