Large diameter steel pipe flanges
NEQ ISO 7005-1:2011
全国管路附件标准化技术委员会(SAC/TC 237)
本标准规定了大直径钢制管法兰的类型与参数、型式与尺寸、技术要求、试验、检验与验收、标志与标记、供货要求。
本标准适用于公称压力Class75～Class900、公称尺寸DN650～DN1500（NPS26～NPS60）的大直径钢制管法兰和法兰盖。
This standard is the original Chinese electronic standard.
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