Material: 302,304,304 L, 316,316 L, 317
 Specifications are as follows:
 Model :40-100 60-150 ,140-400
 Common diameter :0.20-0 .45 mm
Weight capacity: 168 Kg/m3
Specific surface area: 529.6 m2/m3
Porosity : 0.9788ε