2FRM5-31B/0.2Q调速阀 2FRM10-21B/2L调速阀
2FRM5-31B/0.6Q调速阀 2FRM10-21B/5L调速阀
2FRM5-31B/1.2Q调速阀 2FRM10-21B/10L调速阀
2FRM5-31B/3Q调速阀 2FRM10-21B/16L调速阀
2FRM5-31B/6Q调速阀 2FRM10-21B/25L调速阀
2FRM5-31B/10Q调速阀 2FRM10-21B/35L调速阀
2FRM5-31B/15Q调速阀 2FRM10-21B/50L调速阀

2FRM5-31B/0.2QB调速阀 2FRM10-21B/2LB调速阀

2FRM5-31B/0.6Q北京华德调速阀***

2FRM5-31B/0.6QB调速阀 2FRM10-21B/5LB调速阀
2FRM5-31B/1.2QB调速阀 2FRM10-21B/10LB调速阀
2FRM5-31B/3QB调速阀 2FRM10-21B/16LB调速阀
2FRM5-31B/6QB调速阀 2FRM10-21B/25LB调速阀
2FRM5-31B/10QB调速阀 2FRM10-21B/35LB调速阀
2FRM5-31B/15QB调速阀 2FRM10-21B/50LB调速阀



2FRM5-30/0.2L,
2FRM5-30/0.6L,
2FRM5-30/1.2L,
2FRM5-30/3L,
2FRM5-30/6L,
2FRM5-30/10L,
2FRM5-30/15L,

2FRM10-20/10L,
2FRM10-20/16L,
2FRM10-20/25L,
2FRM10-20/50L,
2FRM5-31B/0.6Q北京华德调速阀***
2FRM16-20/60L,
2FRM16-20/100L,
2FRM16-20/160L,

2FRM5-31B/0.2Q,
2FRM5-31B/0.6Q,
2FRM5-31B/1.2Q,
2FRM5-31B/3Q,
2FRM5-31B/6Q,
2FRM5-31B/10Q,
2FRM5-31B/15Q,