DEVELOPMENT VACUUM EQUIPMENT (SANMEN)CO.,LTD ADD:Donggang Indzone,Silins,sanmen,Zhejiang,China Tel:0086-576-83598308 0086-576-83598318 0086-576-83588328 Fax:0086-576-83598309 P.C:317106 E-mail:690689980@qq.com gangzhilin@aliyun.com