SANWO三和SVF3000-7000、SVZ3000-5000采用选进的橡胶硫化整体阀芯，减少了密封圈子位移及双重磨擦，提高了同心度，其使用寿达2000万次以上，也适合用于环境较差之工作场合。SVK1-3000系列电磁线圈由德国纳斯（NASS）为三和特别定制，原装德国进口，其使用寿命可达1000万次以上。型号：SVZ312SVZ322SVZ512SVZ522SVT315SVK115SVK312SVK322SVZ3120SVZ3220SVZ3320SVZ3420SVZ3520SVZ5120SVZ5220SVZ5320SVZ5420SVZ5520SVF3130SVF3230SVF3330SVF3430SVF3530SVF5120SVF5220SVF5320SVF5420SVF5520SVF6120SVF6220SVF6320SVF6420SVF6520SVF7120SVF7220SVF7320SVF7420SVF7520SVS4130SVS4230SVK0120SVK1120SVK2120SVK3120SVK0220SVK1220SVK2220SVK3220SVK1320。电话：86-0311-83075558手机：13403111113传真：86-0311-83075559http://.cnhttp://http://ng-a.cchttp://ng-a.http://ng-a.)