Wuxi Chi accessible metal products specializing in the production of stainless steel punching tube, filter tube, NM? Widely used in car and motorcycle exhaust pipes, oil extraction, chemicals, sewage treatment, water purification equipment, used in oil sand control, but also as a Filter skeleton. more for sand control protective sleeve, oil., natural gas, liquid, air filter frame, liquid, gas, steam, the propagation of light, oil filter tube skeleton, electromagnetic shielding, muffler pipe, the exhaust pipe duct , safety devices, structural components, power plant condensate water filtration industries; sterile water, ultra pure water pre-filtration treatment; industrial water, electroplating solution filtration; hydraulic system filter skeleton, air filtration systems and other materials skeleton: 201 304 409 309s 316L ... outer diameter: ￠ 19-180mm conventional thickness: 0.3-3.5mm Aperture: can be customized hole shape: round, square ... can be customized