Air Chamber: 1)Type:Single & Double Room Chamber 2)T24,T30, T2430,T3030 Air Chamber 3)Certificate:ISO/TS16949 4)Good ... :Single & Double Room Air Chamber2)Size:T12,T16,T20,T24,T30, T2024,T2424,T2430,T3030 Brake Chamber 3)Certificate:ISO/TS169494 ... , T/TSupply Ability5000pcs/WeekCertificate ISO9001:2000/TS16949 Brake Air Chamber T30/30