C / D-M33 × 2 air filter, the filter applies to exhaust reducer. It can maintain the pressure reducer cabinets and atmospheric pressure balance and prevents particles from entering stolen from outside the box, to keep the oil clean the cabinets, to extend the life of reducer. Henan total Wei Machinery Co., Ltd. (Xinxiang mighty Metallurgical Equipment Co.) production and supply of C-type air filter: C-M12, C / D-M33 × 2, C / D-M42 × 2, C / D- M48 × 2, C / D-M60 × 2 / C / D-M76 × 2 / C / D-M90 × 2. C-type air filter --- Model: filtering accuracy 40μm: common thread: C-M12, C-M33 × 2, C-M42 × 2, C-M48 × 2, C-M60 × 2, C-M76 × 2, C-M90 × 2 pipe thread: C-G1A, C-G11 / 4A, C-G11 / 2A, C-G2A, C-G21 / 2A, C-G3A filtering accuracy 10μm: common thread: D-M12, D-M33 × 2, D-M42 × 2, D-M48 × 2, D-M60 × 2, D-M76 × 2, D-M90 × 2 pipe thread: D-G1A, D-G11 / 4A, D- G11 / 2A, D-G2A, D-G21 / 2A, D-G3A bore size: C-M12 nominal diameter DN: 6.5mm C-M33 × 2 nominal diameter DN: 25mm C-M42 × 2 nominal diameter DN: 32mm C-M48 × 2 nominal diameter DN: 40mm C-M60 × 2 nominal diameter DN: 50mm C-M76 × 2 nominal diameter DN: 65mm C-M90 × 2 nominal diameter DN: 80mm I plant The C / D-M33 × 2 air cleaner, filter, manufactured according to the standard size.