j941h电动截止阀(j941h电动截止阀dn150电机功率) 给水截止阀门规格和型号截止阀有哪些分类闸阀和截止阀的符号区别给水截止阀门规格和型号常见的截止阀型号有: 美日标截止阀:J41Y、J41W; 波纹管截止阀:WJ41H、WJ41W; 不锈钢截止阀:J41F、J41H、J41W; 低温截止阀:DJ41H、DJ41Y、DJ41F; 电动截止阀:J941F、...