规格 汽管管径 mm 厚度mm 系数 重量 kg/ m 铜价 元/kg ¢9.52/6.35 9.52 0.8 0.028 0.1953 52 ¢12.7/6.35 12.7 1 0.028 0.3276 52 ¢12.7/9.52 12.7 1 0.028 0.3276 52 ¢15.9/9.52 15.9 1 0.028 0.4172 52 ¢19.05/12.7 19.05 1 0.028 0.5054 52 ¢25.4/12.7 25.4 1.2 0.028 0.8131 52 ¢28.6/12.7 28.6 1.2 0.028 0.9206 52 ¢34.9/15.9 34.9 1.5 0.028 1.4028 52 ¢41.3/19.05 41.3 1.5 0.028 1.6716 52 ¢41.3/22.2 41.3 1.5 0.028 1.6716 52 ¢54.1/22