Profile: Foshan Nanhai Jianpin Air Conditionings Co., Ltd. specializes in manufacturing and marketing air-conditioning related products. We are an ISO 9001:2000 certified company. Hinged thin blade return air grille is improved design based on fixed blade return air grille. The grille is equipped with fastening clamp of dust screen that is convenient to be replaced and cleaned. Bevel square diffuser is a product which can be joint with split-flange multi-leaf adjusting valve or open-valve plate-type air regulating line. It is mainly adopted for the comfortable air conditioning of public construction. Duct access doors are designed to provide convenient, economical access to duct components. Duct access doors have insulated door panels, along with the gasketing between the door and frame which can assure a tight seal without obstruction to the system. These doors are commonly available in either hinged or double cam construction. Static pressure tank is an essential accessory for linear grille. Air supplying main air duct is connected to head of static pressure tank by hose.