1.Single/ Double Diaphragm,Piston Spring brake chamber 2.Modal:T24,T30,T 30/24,T 30/30,T24/30,T24/24 3.Specializing in Truck, ... :-40oC---+80oC 4.Life-time: Service Chamber:≥1000000 times Parking Chamber:≥200000 times 5.Suitable for various large truck,heay-duty, trailer ... ,considerate service for our partner. If you are interesting in any products,please contact to us by E-mail spring brake chamber