金丝带 99.97Au 退火

This specification covers pure gold in the form of wire 0.005 to 0.040 inch (0.012 to 1.000 mm) inclusive, in nominal diameter, and ribbon 0.002 to 0.051 inch (0.05 to 1.28 mm) inclusive, in nominal thickness (see 8.5 ).Cross Reference: ASTME8