Sarlech Establish in1973, situated in the heart of town,starts manufacturing automatic voltage stabilizers,battery chargers,welding machines, In 1985 starts servo stabiliozers and 1998 power inverters UPS etc. 2005 trading electrical machinery & parts, welding equipments, ballast, ...

&＃20844;&＃21496;&＃31616;&＃20171; Beijing Aosiyuan technical limited corporation locating in the Overseas Students Pioneer Park Haidian District of city. which is a high tech enterprise primarily engaged researching, developing and producing high-frequency soft switching ...