Diaphragm Spring Brake Chamber ISO9001:2000/TS16949 CNC Machining Center Over 150 ... Production&Inspection Equipment ZM440 Rear,ZM443 Rear Diaphragm Spring Brake Chamber, have reasonable structure, excellent braking quality, competitive price. ... CNC machining centers, special pressing machines, assembly lines and test equipments for airproof, durability, static characteristics and antivibration etc., ...