... fireplaces, heaters, ventilation,cleaner, air curtain, air conditioning, refrigerator or other machinery and equipment. • We also offer OEM and ODM services for ... you give us the detail drawings .For performance, we offer air flow and noise design according to customer’s requirements.Mainly ... , Φ81, Φ85, Φ88, Φ88.8, Φ89, Φ90, Φ91, Φ92, Φ93, Φ93.4, Φ94, Φ95, Φ96, Φ97, Φ97.4, Φ98, Φ99, Φ100, Φ101, Φ101.5 ...