ContactKelvin GaoShanghai Viacert Electromechanical Technology Co., Ltd.china@hpivs.comRm. 211, Block 4,Huigu Baimao Technology Park, No. 641,Tianshan RoadChangNingShanghai, 200051ChinaTel. +86 21 5108 8618Fax. +86 21 6228 9502 TIAN SHAN LU ContactDavid ZhouShanghai OUCE technology Co., Ltd.OUCE@hpivs.comBuilding No 333Shimen 2 Road,Shanghai, 200041China Tel. +86 21 6256 3300 ext.8002Fax. +86 21 6256 3977 SHI MEN ER LU