It is used as a filter of the tubing. The material is steel, the process is plate cutting, stamping and bending. the dimension is 56.4*30*46.4mm.it is with good flatness of 0.05mm , the obvious feature is that there are many mini holes with diameter of 1.6mm, At the same time, in order to connect with the pipe perfectly, there is a high precision hole with the diameter of 25.5mm(+/-0.02) on the other side.