1.Type: Single & Double, DD, DP, SEAL 2.Size: T12, T16, T20, T24, T30, T2024, T2424, T2430, T3030 3.Certificate: ISO/TS1694 Tinmy Autoparts offer high quality air brake chamber:1. Air Chamber type: Single room, Double room2. Size: Single room type: T09, T12, T16, T20, T24, T30 Double room type: T2024, T2430, T2424, T3030 (DP type & DD type) 3. Certificate: ISO9001:2000/TS169494. Good quality, ...