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f序号15941595159615971598159916001601160216031604160516061607160816091610161116121613161416151616161716181619162016211622162316241625162616271628
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子目名称低压碳钢板卷管（电弧焊）DN1600低压碳钢板卷管（电弧焊）DN1800低压碳钢板卷管（电弧焊）DN2000低压碳钢板卷管（电弧焊）DN2400低压碳钢板卷管（电弧焊）DN2600低压碳钢板卷管（氩电联焊）DN200低压碳钢板卷管（氩电联焊）DN250低压碳钢板卷管（氩电联焊）DN300低压碳钢板卷管（氩电联焊）DN350低压碳钢板卷管（氩电联焊）DN400低压碳钢板卷管（氩电联焊）DN450低压碳钢板卷管（氩电联焊）DN500低压碳钢板卷管（氩电联焊）DN600低压碳钢板卷管（氩电联焊）DN700低压碳钢板卷管（氩电联焊）DN800低压碳钢板卷管（氩电联焊）DN900低压碳钢板卷管（氩电联焊）DN1000低压碳钢板卷管（氩电联焊）DN1200低压碳钢板卷管（氩电联焊）DN1400低压碳钢板卷管（氩电联焊）DN1600低压碳钢板卷管（氩电联焊）DN1800低压碳钢板卷管（氩电联焊）DN2000低压碳钢板卷管（氩电联焊）DN2400低压碳钢板卷管（氩电联焊）DN2600低压碳钢伴热管（氧乙炔焊）　用于设备连接管道DN15低压碳钢伴热管（氧乙炔焊）　用于设备连接管道DN20低压碳钢伴热管（氧乙炔焊）　用于设备连接管道DN25低压碳钢伴热管（氧乙炔焊）　用于外管廊管道DN15低压碳钢伴热管（氧乙炔焊）　用于外管廊管道DN20低压碳钢伴热管（氧乙炔焊）　用于外管廊管道DN25低压不锈钢伴热管（电弧焊）用于设r