厂区所有管道罐体保温外壳更换为铝板不锈钢材质工程施工方案一、编制依据1.1GBJ126-891.2GB50185-931.3GB4272-921.498R4191.5GB50194-93二、施工准备2.1222.2.12222.2.32.321042.42.4.12.4.22.4.32.52.5.12.623222三、施工方案施工工艺3.1.1——50mm——0.5mm——3.1.210001500mm3.1.315456003.1.450mmDDwordDDDDDDDDDD2100mmDDwordDDDDDDDDDD612mm15mm200mm250mm05・1mm50mm7512mmDDwordDDDDDDDDDD33.8DDwordDDDDDDDDDD3.10.7DDwordDDDDDDDDDD78DDwordDDDDDDDDDD12.7DDwordDDDDDDDDDD4515mDDwordDDDDDDDDDD3.122mDDwordDDDDDDDDDD2.4DDwordDDDDDDDDDDDDwordDDDDDDDDDD19
