多功能组合式弯管装置四川铜江机械厂研制成功的多功能组合式冷弯管装置，已经投入使用。该冷弯管装置取代热弯管装置节约大量氧气和乙炔混合气体。该装置是在固定式单一弯管装置基础上，以互换技术，分解组合协调为设计原理所改进的节能降耗新装置。组合式弯管装置的特点... Multifunctional modular elbow device Sichuan Tongjiang Machinery Factory successfully developed multi-function modular cold elbow device, has been put into use. The cold pipe device to replace the hot pipe device to save a lot of oxygen and acetylene gas mixture. The device is based on a fixed single elbow device, with interchangeable technology, decomposition and combination of coordination for the design of the principle of improved energy-saving new device. Combined elbow device features ...