MZZ2系列直流制动电磁铁线圈:MZZ2-40H,MZZ2-60H,MZZ2-80H直流制动电磁铁线圈MZZ2-100H,MZZ2-120H直流制动电磁铁线圈MZZ2-40S,MZZ2-60S,MZZ2-80S直流制动电磁铁线圈MZZ2-100S,MZZ2-120S直流制动电磁铁线圈