- Butterfly valve-37DN 50-500 carbon steel, cast iron, stainless steel water, oil goods, steam, air
- 2017-07-01 21:52
- Model Number: HL-butterfly valve-37 Key Specifications/Special Features: Features:1. Small in size and light in weight. Easy installation and maintenance. It can be mounted wherever needed.2. Simple and compact construction, quick 90 degree on-o...