Notice for ordering:
1. As to bi-directional metal seated buttedly valve,there are different temperature levels, please notify temperature when you order goods.
2. As to electric bi-directional metal seated butterfly valve,there are two kinds:common type and explosion-proof.Users must notify when ordering.
3. As to worm gear operated butterfly valve,please notify in the contract if user needs bi-directional synchronic display.
4. When the users want to buy other bi-directional metal seated butterfly valves that are beyond operation types,specification,and material,we can
design specially,but users must notify when ordering.
