Customers have special requirements for products. The following instructions should be provided in the order contract:
1) Structure length
2) Connection form
3) Nominal diameter, full path, shrinkage diameter, pipe size
4) Use of medium and temperature and pressure range
5) Experimental, inspection standards and other requirements
6) The field can be configured according to the special requirements of customers.
7) If the type and model of the valve is provided by the customer, the customer should correctly explain the meaning and requirement of its model and sign the contract under the conditions of understanding and agreement between the supplier and the supplier.