are relatively rare, and many units of use try to avoid this unusual size as much as possible, so if a customer anticipates ordering a large number of 5 inch gate or check valves
, leave as much time as possible for Zhengfeng to have enough time to manufacture to meet customers' requirements. However, small quantities, such as 5 inch check valves
, butterfly valves
each of less than 50, are normally available in safety stock to meet particularly urgent requirements.