发布时间:2025-01-24 22:42:02
无法区分,因为机械三通的叫法不正确,
沟槽式表示法兰面的连接方式,
三通的表示方式:按通径分为等径三通和异径三通
按连接分为承插三通和对焊三通等
还有按材质、压力等级等要求划分
涉及到标准有:GB/T 14383-2008;GB/T 12459-2005;GB/T 3287-2011
很多人弄不清无框阳台与有框阳台无框阳台和有框阳台的区别是怎样的
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