The registration address of shanghai shizuku electric science and technology ltd. Is in bong hyeon, shanghai city, and was in december 2014. Operating: r, k, s, f series gear brakes, tkm calibrated to hyperbolic gear brakes, t series wheel gears turned to boxes, nmrv snail brakes, mb classless speed transformers, wb, x\b series lined wheel-retarders, g series full closed gear brakes, special speed-reducing machines, etc., and welcome to the shop