ShenZhen Johnson M.&E. Tech. Co., Ltd. is a specialied manufactory in manufacturing of electromagnetic part.Our company has a history of researching and producting electromagnetic parts for more than 20 years and pass the International quality system attestation ISO9001 in 2001.Our products include electromagnetic clutches,brakes and micro-specialied motor.By now ,we have 18 series of products including more than 300 of specification.