SMC pneumatic tank SMC pneumatic tank is a new generation of switch equipment, the ... 40 ℃, (24h average does not exceed 35 ℃), the lowest -25 ℃; b, Altitude: not exceed 3000m (more than 3000m in coordination with ... to maximize the protection of personal safety and equipment operation. b, applicable standards: GB / 11022-1999 common technical requirements for high ...