The invention relates to a pair of shoes, in particular to double air bag.
本发明涉及一种鞋，是一种双气囊。
The invention discloses an environment protective type double air duct ventilator.
本发明公开了一种环保型双风道吸油烟机。
Braking system double pipe air brake system, parking brake, exhaust brake.
双管路气制动系统，带驻车制动、排气制动。
Double circuit, air brake, drum type.
双电路，空气制动，滚筒式。
Thee cab with air conditioner, double operations and seat can bring the comfortable working enviroment.
空调驾驶室，双操控装置及座椅，为您提供安全舒适的工作环境。 缡。
Double loop high speed vacuum suction system, spread to the surrounding air by the central.
双回路高速真空吸气系统，由中央向四周扩散吸气。
The utility model relates to a single air chamber double loop pressure braking device.
本实用新型为一种单气室双回路气压制动装置。
The utility model relates to a single air chamber double loop pressure braking device.
本实用新型为一种单气室双回路气压制动装置。
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