... is suitable for high,middle,low temprature(+5°C— -25°C)1.light in weight,convenient intallation,compact structure, ... 6MPa pneumatic test permition,reasonable design, Power conservation by 25%.7.cold-rolled steel plate for shell,phosphating static spraying ... 6MPa pneumatic test permition,reasonable design, Power conservation by 25%.7.cold-rolled steel plate for shell,phosphating static spraying ...