... auto-coding, serial No., batch No., barcode, 2 -D code, etc. on metal or nonmetal surface (plastic, silicon or ... , reflect lens, Q-switch, Q-driver and other key parts imported from USA,UK, Singapore etc. ·Main application field: ... Hardware, IC, instrumentation, electronics,machinery industry, jewelry, glasses, auto parts, telecommunications products, plastic buttons etc. Vin Code laser marking machine