During expiration, the diaphragm passively relaxes and returns to its unique dome form. This lowers the amount with the thoracic cavity. Máy phun s?n t?nh ?i?n b?t Máy phun s?n Airless Su?ng phun Adult men gô?m s?? Air brush bút v? m? thu?t D?ng c? dùng h?i Onpin