... and space flight,nuclear industry, military, oil, medical treatment High specific gravity alloy productThe high proportion of material is an alloy of ... , W-Co, WC-Cu-W, W-Ag, and other major series, the density of up to 16 .5-19.0g/cm3 ... the world a high proportion alloy, which also features a series of outstanding features, than major: general share of 16.5 ...