1、UDC621.643.4J15GB中华人民共和国国家标准GB3756.2-83卡套式对接直通接头体Union for butt joints-Body1983-06-17发布1984-04-01实施国家标准局批准GB3756.2-83mm公称压力管子外径L重量e(巴)Do4(kg/100件)3M1018.5221.333.513156M121.25410.726.41.97M141.5613西1517,33.0110M161.58331820.83.522M181.5104,32342124.214M201.5125.1613.516M221.5142427.76.09G35(250)18M2
2、41.5152731.27.7320M271.517373034.610.622M302193439,314.04625M33222183641.617,428M36224484147.322.632M4222733.6504653.134M4523035.11940M482345057.736.85142M522365563.546.2M141.531618.53.4633M161.51820,84.5913.510M181.55.57352124.212M201.57.0814M221.5102427.78.5336(400)16M241.512142731.29.9018M271.514383034.613.220M30216483439.316.81922M33218503641.621.725M362205329,02028224147.3M3925432.1注：重量系计算值，比重为7.85kg/dm。技术条件按GB3765一83的规定。2
