8.8视窗不得与硬物碰撞;reliable performance ,气动球阀, advanced system and ease of maintenance ; which allows for a wide注意:隔爆型电气部分增加了隔爆面结构,气动球阀生产商,并采用隔爆型接线盒和YBDF隔爆型阀门用电动机。The ? ?motorInterlock?panel(See Picture 8)