Beijing Hengrun Science and Technology Co.Ltdis the biggest electronics agent in china,We are the agent of MITSUBISHI,SANREX,SANKEN,FUJI,TOSHIBA,SIEMENS,SEMIKRON,MOTOROLA,IR,PRX,ABB,EUPEC,HITACHI,IXYS,FAIRCHILD and so on.We engage in many kinds of... 