管道安装费用一览表(元/m)管道公称直径低压碳钢管电弧焊安装低压碳钢管氩电联焊安装低 压 不 锈钢 管 电 弧焊安装 ( 人工 63 元 /日的价格 ) 低压不锈钢管氩电联焊安装( 人工 63元 / 日的价格 ) 中压碳钢管电弧焊安装 ( 人工 63 元/日的价格 ) 中压碳钢管氩电联焊安装( 人工 63元/ 日的价格 ) 中压不锈钢管电弧焊安装( 人工 63元 / 日的价格 ) 中压不锈钢管氩电联焊安装( 人工 63元 / 日的价格 ) DN15 14.0 14.9 4.2 (5.3 )3.9 (4.8) 4.3 (5.3) 5.4 (6.7) DN20 14.4 15.1 4.6 (5.8 )4.4 (5.5) 4.8 (6) 5.6 (6.9) DN25 15.5 16.4 5.4 (6.7 )5.0 (6.2) 5.5 (6.8) 6.0 (7.4) DN32 16.3 17.3 6.1 (7.5 )5.7 (7) 6.2 (7.6) 6.7 (8.2) DN40 16.9 18.1 7.8 (9.6 )6.4 (7.8) 7.0 (8.6) 7.8 (9.5) DN50 17.9 19.7 9 (11.1 )9.6 (11.4) 7.3 (8.8) 8.4 (10.1) 10.9 (13.2) 11.9 (14.2) DN65 21.0 22.7 12 (14.7 )12.5 (14.9) 9.0 (10.8) 10.6 (12.7) 14.8 (17.8) 16.6 (19.6) DN80 22.9 25.0 14.6 (17.3 )13.6 (16.1) 11.1 (13.4) 12.6 (15.1) 17.9 (20.9) 18.9 (22.3) DN100 29.7 33.6 18.4 (21.6 )16.6 (19.5) 18.6 (21.2) 20.5 (23.4) 22.2 (25.7) 22.6 (26.3) DN125 36.6 39.7 26.1 (29.3 )25.3 (28.6) 21.3 (23.9) 23.9 (26.8) 31.7 (35.1) 32.5 (36.4) DN150 40.0 42.8 30.7 (34.3 )28.6 (31.9) 23.2 (25.8) 26.3 (29) 36.6 (40.3) 36.4 (40.4) DN200 46.3 49.6 43.1 (48.3 )40.4 (45.2) 32.7 (36.3) 36.8 (40.5) 54.8 (60.4) 53.5 (59.4) DN250 62.4 66.9 58.3 (64.4 )54.5 (60) 43.7 (48) 49.0 (53.4) 73.1 (80) 69.8 (76.5) DN300 66.3 71.4 69.4 (76.4 )64.5 (70.7) 47.5 (52) 53.4 (58) 90.9 (98.4) 85.0 (92.7) DN350 76.2 85.2 79 (87)73.5 (80.6) 55.8 (61.2) 61.8 (67.4) 115.3 (123.8) 106.8 (115.5) DN400 83.4 89.8 88.5 (97.3 )82.2 (90.1) 66.8 (73.1) 73.7 (80.2) 139.2 (148.4) 130.7 (140.5) DN450 99.9 107.4 80.9 (90) 84.2 (90.8) DN500 110.6 118.9 92.4 (101.9) 101.8 (111.8) 管件公称直径低压碳...