1.Ensure the wear resistance and rebounds of  protection plate after heat treament.

2.Stainless steel wire with a special bending process, meet the sealing grease coated block, so as to achieve the sealing function.

3.The net piece use the stainless steel wire net, after sealing the grease  to waterproof and good sealing function.

4.The welding parts adopt a good welding properties of materials.

5.The assembly process is reasonable, to ensure that the wire maximum fullness and weight, and ensure the accuracy of plate thickness.