... brake pipes, pressure pipes, spiral pipes and pneumatic equipment, as well as the pneumatic duct. Its excellent properties is the brass, steel ... .05 × 1000 kg / cubic meter.2. The working environment: a. pneumatic system -40 ~ +100 . b. air brake system -40 ~ +60 .Our ... oil pipe, brake oil pipe, high pressure pipe, steel tube assembly, nylon pipe, water pipes, steel series pipe, aluminum pipe, ...