GB6888-86表1mm直径D长度L壁厚法兰直径D法兰厚度型号公称尺寸允许偏差公称尺寸允许偏差81公称尺寸允许偏差A1-6-101060.1士11.0-1.5100.11-2A1-6-1515A1-10-2020A1-10-303010115A1-10-4040A1-10-50500.50.513A1-20-30301A1-20-5050201328A1-20-1001002A1-20-2002003A1-30-50501A1-30-1001002场1.0381.02-4A1-30-2002003A1-30-300300A1-50-1501503A1-50-3003001.52-31.53-5A1-50-4004004A1-50-5005002
