Due to the different production process, the application category is also different. The product can be widely used in water, steam, oil, dust and other types of hose type of fastening connection, can also be designed according to the requirements of the design and production can withstand considerable pressure, fastening inner diameter by 4 - 120mm, can withstand the pressure of 5 - 100kg; (currently has 7 ~ 75mm diameter, rated pressure 60kg). In mechanical, electrical, ventilation and environmental protection equipment, building materials, decoration and other industries widely used.