For a long time. Non-negative pressure provide water unit and constant pressure water supply unit are producted by order. A batch of order correspond to a batch of products. For interested customers,but haven't decide to order. If customer come to visit our company.Customer will not see the product so that the customer cann't understand our product. This is not good for sell.
In order to solve the question. The leader of company decied to assembing a set of sample.And show to customers that when customer visit our company. So the customer will have an understanding. Our company have assembing three units.Two non-negative and one constant pressure. Welcome to visit our company of new and old customers.
