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大庆林源毛纺厂经报请上级批准,投下资金六十五万元,对已使用长达十五年之久的毛团、纺纱等车间进行彻底的维修和改造。在厂房顶篷上,原来是锯末保温层,现在均匀铺下了厚达七公分的珍珠岩,共使用了三百五十立方米珍珠岩,既能防火,又增加了保温的性能。房顶通风口为防止闲杂人员进入、全部钉上了粗铁丝编成的纱窗。对
The Daqing Linyuan Woolen Mill reportedly requested the approval of its superiors and invested 650,000 yuan for the thorough repair and reconstruction of the woollen and spinning workshops that had been used for fifteen years. On the ceiling of the factory, the sawdust insulation layer was originally used, and now seven centimeters thick perlite has been evenly laid. A total of 350 cubic meters of perlite has been used, which can not only prevent fire but also increase the performance of thermal insulation. Roof vents are designed to prevent people from entering and all nailed screens made of coarse wire. Correct