Although in recent years, the domestic metal hose equipment has improved rapidly, the equipment can meet the basic process requirements. However, there is a requirement for special process in the production of stainless steel hose products, domestic metal soft pipe or can not meet the technical requirements, or they can't production, still can choose import metal soft pipe. Such as shenzhen zhongjie photoelectric technology co., LTD. In order to produce the double buckle (Fully interlock) stainless steel hose, imported from Germany in 2017 a metal pipe, mainly for the production of 6 mm to 15 mm stainless steel hose, and choose domestic metal soft pipe bender can only produce "false" double buckle stainless steel hose, although the price of imported metal pipe bender than congener domestic metal pipe bender is 10 times higher, up to 1 million yuan, the tensile properties of the hose and soft performance is different with domestic metal pipe bender. The main advantages of imported metal pipe are: (1) stability and reliability. One important reason for the stability of the imported metal pipe machine is the quality of the parts and the overall performance of the equipment. Another reason for the reliability of imported equipment is high degree of automation. The automatic control function of the imported metal pipe machine is perfect, and the outer diameter of the hose can be controlled accurately, with little deviation and improving the product quality. (2) good durability. To ensure the quality of stainless steel hose products, mould (rolling stick) play a key role, but at present domestic metal pipe compared with the imported metal pipe bender is still relatively large gap, the gap is embodied in the mold (rolling stick) accuracy and durability. (3) long service life. The difference between domestic metal pipe and imported metal pipe is mainly due to the difference of stainless steel hose. Because the raw material quality is inferior to imported product, the rolling stick of domestic machine often can only use half a year, and the roll stick of imported metal tube machine USES life is 5 years. (4) the efficiency is greatly raised, and the output is ten times higher than the domestic machine.