1. Responsible for sampling, testing and measurement of the company; 2. responsible for the company's metal balance work; 3. Responsible for providing relevant accounting data of the production unit; 4. Responsible for the internal accounting work of the unit; 5. Responsible for the safety and civilized work of the department; 6. Responsible for other work assigned by company leaders. Flanged butterfly valves have longer face-to-face dimensions and stronger structure, compared with wafer or lug type butterfly valves. The vulcanization or lining process is therefore more complicated than wafer or lugged butterfly valves. For butterfly valves size larger than 24", flanged end is recommended for longer service. Flanged Butterfly Valve, Resilient Seated Flanged Butterfly Valve, Centerline Butterfly Valve Manufacturer, Eccentric Flanged Butterfly Valve, Offset Butterfly Valve Supplier Wenzhou Kolink Valve Co., Ltd. , https://www.kolinkvalves.com