寧夏,銀川,青海,西寧,西門子6RA28維修，運轉速度不穩定維修，可控硅晶閘管燒維修，直流調速裝置無顯示維修，運轉速度不連貫維修，高速不穩定維修，低速不穩定維修，啟動合閘跳保險維修，運轉不出力維修，報勵磁故障維修，優化通不過維修，啟動報代碼故障維修，炸機維修，電源板壞維修，速度不可控維修，超速維修，帶負載報故障維修，冷卻風機壞維修，散熱風扇壞維修，直流調速裝置風扇銷售，勵磁板銷售，電源板銷售，可控硅銷售，晶閘管銷售，熔斷器銷售，主板銷售，面板銷售，擴展板銷售，CBP2板銷售，通訊板銷售，脈沖觸發板銷售，控制板維修等等。  

A015維修,A018維修,A019維修,A020維修,A021維修,A022維修,A023維修,A024維修,A025維修,A026維修,A027維修,A028維修,A029維修,A031維修,A033維修,A034維修,A035維修,A036維修,A037維修,A038維修,A039維修,A043維修,A044維修,A046維修,A047維修,A049維修,A050維修,A053維修,A054維修,A059維修,A067維修,A081維修,A088維修,A089維修,A096維修,A097維修,A128維修

西門子6RA70維修，6RA7018維修，6RA7025維修，6RA7028維修，6RA7031維修，6RA7075維修，6RA7078維修，6RA7081維修，6RA7085維修，6RA7087維修，6RA7088維修，6RA7091維修，6RA7093維修，6RA7095維修，6RA7098維修，
直流調速6RA24維修，6RA2418維修，6RA2425維修，6RA2428維修，6RA2431維修，6RA2430維修，6RA2432維修，6RA2475維修，6RA2477維修，6RA2481維修，6RA2485維修，6RA2487維修，6RA2491維修
調速器6RA28維修，6RA2818維修，6RA2825維修，6RA2828維修，6RA2831維修，6RA2830維修，6RA2832維修，6RA2875維修，6RA2877維修，6RA2881維修，6RA2885維修，
調速裝置6RA23維修，6RA2318維修，6RA2325維修，6RA2328維修，6RA2331維修，6RA2330維修，6RA2332維修，6RA2313維修，6RA2375維修，6RA2377維修，6RA2381維修，6RA2385維修，
上海西門子直流調速維修,浙江西門子變頻器維修,江蘇西門子觸摸屏維修,蘇州西門子整流回饋單元維修,南京西門子數控電源維修,無錫西門子伺服驅動器維修,上海西門子變頻器維修,杭州西門子操作面板維修,江陰西門子電