Angle flange Star Industrial Co., Ltd. [Jie Weinuo recommended angle iron flange duct] angle refers to the angle or roll angle iron were bent by special equipment for welding stainless steel duct, angle remains after processing two angles vertical edge is 90 ° welded duct manufacturers, no cuffs. And no wrinkles. Angle flange is divided into two: one is the outward roll angle (angle n roll, opening outwards), one is the inward roll angle (angle iron welded anti-roll duct, opening inwards). . [Jie Weinuo Star recommendation - angle iron flange Duct Duct] Jie Weinuo Industrial production processing welded duct processing, foreign shipments can be processed into semi-finished products, reduced shipping costs, large projects galvanized duct can also be on-site processing. Welded duct processing, welding duct Hongqiao, Tianjin Industrial 捷维诺 welded duct selected by 捷维诺 (Tianjin) Co., Ltd. Jie Weinuo (Tianjin) Co., Ltd. (www.tjjwnsy.com) strong, credible, in Tianjin fans, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jie Weinuo Industrial and you hand into the brilliant, for a better future!