北京四季青锅炉厂为乡镇企业,以生产工业锅炉为主,全厂职工1800人,产值4200万元,是国家劳动人事部与机械部1984年颁布的150家单位之一。其换热器分厂(见封四)以生产螺旋板换热器为主,全厂职工80人产值200万元。除此该厂还生产下列定型产品: 1.LLI型螺旋板冷凝器系列用于建筑取暖用汽—水热交换。国务院颁 Beijing Sijiqing boiler plant for the township enterprises, mainly to produce industrial boilers, the factory workers 1,800 people, the output value of 42 million yuan, is the State Ministry of Labor and Machinery issued in 1984, one of 150 units. The heat exchanger plant (see seal four) mainly to produce spiral plate heat exchanger, the whole plant 80 workers output value 2000000 yuan. In addition the factory also produces the following stereotypes products: 1.LLI-type spiral plate condenser series for building heating steam - water heat exchange. State Department awarded