Who We Are SINGI established in1980, with annual sales amount more than 90 million USD, presently we have three production bases located in Liushi town, Yueqing in Wenzhou and Shanghai. 1)In Liushi, mainly terminal block is manufactured ; 2)In Yueqing, mainly low voltage construction electrical products are manufactured,like MCCB,MCB, Air Circuit Breaker, Switch &Socket, Distribution Box, ATS, Auto-reclosing etc. and the components which needed by above products; 3)In Shanghai, mainly ...