Laser Inscription
激光刻字( Laser inscription ) 运用激光在钻石上（通常为腰围），刻出的鉴别编号或其它讯息。
LASER SCULPTURE
... 定制鉴定special designed certificate 检测证签label 激光刻字laser sculpture ...
Laser plotter ; laser cutting plotter
laser marking ring
PEQD
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