1,Air chamber:single and double brake chamber. 2, pole long:207 and 255mm 3, Special order ... Produce brake parts similar like brake drum,brake lining,brake air chamber,slack adjust, adjuster arm,kingpin, fifth wheel.We supply ... and cantilever bogie system all the time. 1,Air chamber: single and double brake chamber. 2, pole long:207 and 255mm. 3, ... other spare parts.3,BPW standard. T-30 brake air chamber