NEMA 1 - Indoor use with some protection against contact with enclosed equipment.
符合NEMA 1—室内有一些防止接触全封闭防护设备的使用。
2
One of the main measures of improving IAQ is to control contamination sources strictly Electrostatic air cleaners are a type of purifying equipment widely used to remove indoor air contaminants.
Yongjia Mei 'ao Craft Factory is a professional integrated development and production of indoor and outdoor children's play equipment and all kinds of toys.