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authentication certificate
authentication certificate
authentication certificate
authentication certificate
shandong junchuang lock co., ltd.
tel：0534-3619965 0534-3619286 fax：0534-3619286
unified national customer service telephone：400-680-9903
e-mail:
address ：shandong qingyun xu garden township
industrial park city road 160
technical support：junchuang and business
