JG/T3031.5-1996表290弯头的基本尺寸mm公称铜管结构尺重如猫径外径TkgDNDD.LPNI.OMPaPN1.6MPaPN1.OMPaPN1.6MPa88器168181081010二885179191】0.01四121288181020120.75151616时88221224140.0220名228湖311733190.032528牛8裙382040221.03535r8路462448260.091.00g44t8瓶583060320.140.211.5505555-8872740.220.333436657070:8884862.00.480.641.5g085858第9838100402.50.691.13100105105+8B12848130502.03.01.472.18125133133盼16868170702.54.03.084.90150159159*h820080203833.04.55.287.80200219219632551052581084.06.012.3218.30595