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Optical lens/ Optoelectronic integrated system/ Digital Display Engineering: 86-335-3255377; 86-335-3255368; 86-335-3255362

Semiconductor test equipment sales: 86-335-3255351;  86-335-3255353

Water jet cleaning service:86-335-3655398

Precision processing service:86-335-3255389
Address: NO.165, Hebei Street,Qinhuangdao,Hebei, China
Post code: 066000
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