Use of spherical metal particles as laser-marking or laser-weldability agents, and laser-markable and/or laser-weldable plastic

The invention relates to no the stibium and/or comprising a antimony composite spherical metallics use, serves as a light beam and agent or the laser bonding beam of plastic; through a light beam granularity measuring method, a area granularity distributed on the coil the value to indicate of the spherical metallics's grain size distribution's D99 value is less than 110 microns; the D90 value is less than 75 mm, and D50 value is less than 45 microns. The invention also relate to comprising a light beam and agent of the laser beam and/or the laser welding plastic; the laser beam and agent of the spherical metallics and; the spherical metallics no the stibium and/or comprising a antimony composite; through a light beam granularity measuring method, a area granularity distributed on the coil the value to indicate of the spherical metallics's grain size distribution's D99 value is less than 110 microns; the D90 value is less than 75 mm, and D50 value is less than 45 microns.