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 9502TIAN SHAN LU ContactDavid ZhouShanghai OUCE technology Co., Ltd.ouce@hpivs.comBuilding No 333Shimen 2 Road,Shanghai, 200041ChinaTel. +86 21 6256 3300 ext.8002Fax. +86 21 6256 3977SHI MEN ER LU