The internal thread pneumatic ball valve and butt welded pneumatic ball valve are divided into integral type (one piece type), two-stage type and three-stage type. The valve body casting adopts the advanced technology introduced from Taiwan, with reasonable structure and beautiful appearance. The valve seat adopts elastic sealing structure, with reliable sealing and easy opening and closing. The valve rod adopts a bottom mounted structure with reverse seal, and the valve rod will not be flushed out when the valve chamber is abnormally pressurized. Two piece and three piece pneumatic ball valves are also connected by butt welding (BW) and socket welding (SW), and can be equipped with international standard ISO support platforms and locking devices. 90 switch positioning mechanism can be set and locked as required to prevent misoperation. Drive mode: manual, electric, pneumatic.

4、 Describe the influence of guiding personality and expanding practice. We can list many elements of the adherence to the implementation force, including the strategic level, personnel level, principle level, cultural level and many other things.
During this period, the influence of guiding personality on the implementation is an important element. In our country's management sector, we have used the analogy of "strict control and severe punishment", and the analogy of "document meetings flying all over the place". The original effect will not be very good for the implementation force.
"Strict control and severe punishment" and all day meetings and documents issuance are the characteristics of guidance. Although this has a certain effect on the implementation, many things usually grow up. We have more appearances of shifting blame and wrangling with each other, and fewer people are brave to take responsibility; The appearance of thunder and rain makes us see through; The issue of documents for the purpose of issuing documents is also frequent.
How can this be implemented. Jack Welch regards deepening the frontline as a very important task. For him, there is no clear border between major events and minor ones.
As mentioned in the "Implementation", some small things are necessary to be done as guidance. This is also a guiding personality.