air brake coil 1.material:PA/PU 2.anti-aging ,anti-oil,smooth surface, good function 3.certificate:ISO ccc 4.MOQ:500 pcs 1. Working pressure: 1Mpa2. Temperature range: from -40 to +1203. Color: red, blue, yellow, black, orange, natural, etc.4. Sizes: 22, 23 round.5. good softness and flexibility, nvironmental and nontoxic material.6. good wear-resistant performance.7. anti-acid, anti-oil and anti ...