请教标红几处的中文（工程中的管道规格）？ http:///q/how_do_you_calculate_piping_erection_unit_in_inch_dia_and_inch_meter 鬼子的名词鬼子的网站应该说得对 inch dia = nos. of weld joints x size of pipe (in inch) inch -meter = size of the pipe (in inch) x running length of pipe (in meter) 目测表中一三列之积 求评分，求人气 查看更多
大直径管法兰？ 详细说明见asme b16.47-2011 1.2 flange series this standard provides two series of flange dimensions. series a specifies flange dimensions for general use flanges. series b specifies flange dimensions for compact flanges that, in most cases, have smaller bolt circle diameters than series a flanges. these two series of flanges are, in general, not interchangeable. the user should recognize that some flanged valves, equipment bolted between flanges, and flanged equipment may be compatible with only one series of these flanges. 还可见 gb /t 13402-2010 大直径钢制管法兰，其中表1规定了二个系列各种尺寸法兰适用/选用范围查看更多
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