Raws li ib qho ntawm cov kws tshaj lij PCB feem ntau cov lag luam Laser Marking tshuab cov khoom lag luam thiab cov neeg muag khoom hauv Suav teb, peb tau nthuav tawm los ntawm cov khoom lag luam zoo thiab cov nqi sib tw. Thov so assured mus yuav pcb laser marking tshuab kev muag khoom ntawm peb lub hoobkas.

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