Butterfly valve is a simple structure of the control valve, can be used for low pressure pipeline medium on/off control, butterfly valve is by closing the disc, rotating around the valve shaft to open and close the valve.
Stainless steel square-neck carriage bolts made of stainless steel 304. These bolts have good chemical resistance and may be slightly magnetic. They are a good choice for ACQ treated (arsenic-free) wood. The square neck prevents them from turning when the
Item function:1.High elasticity, you can shake and squeeze ,throw it ,it also can flashing2.it can be used for promotion gifts,collection,decoration2.suitable age:3+
1.Eco-friendly HDPE, non-toxic and no smell, can be used for a long time;2. Cartoon designed with various educational parts,creating funny gaming space.3. Wide applicable space,making infinite fence addition possible to set up ideal protection space.