HG/T 20635-2009.Specification for selection of steel pipe flanges, gaskets and bolting(Class designated).1范围HG/T 20635规定了钢制管法兰、垫片和紧固件(Class系列)配...
HG/T 20672-2005.Specification for design of urea prilling tower.1总则1.0.1尿素造粒塔既是构筑物,也是尿素生产中的重要化工设备。因此,在设计尿素造粒塔...
HG/T 20673-2005.Specification for structural design of compression house.1总则1.0.1 为适应化工和石油化工行业的发展,在工程设计中贯彻国家的技术经济政策...
HG/T 20681-2005.Technical stipulation of civil-load requirements for the design of boiler and turbine house.1总则及基本规定1.1 总则1.1.1为了统一工业企业与区域供热...
HG/T 20628-2009.PTFE envelope gaskets for use with steel pipe flanges(Class designated).1范围HG/T 20628规定了钢制管法兰(Class系列)用聚四氟乙烯包覆垫片的型式、...
HG/T 20630-2009.Metal jacketed gaskets for use with steel pipe flanges(Class designated).1范围HG/T 20630规定了钢制管法兰(Class系列)用金属包覆垫片的型式、尺寸、...
HG/T 20631-2009.Spiral wound gaskets for use with steel pipe flanges(Class designated).1范围HG/T 20631规定了钢制管法兰(Class系列)用缠绕式垫片的型式、尺寸、技...
HG/T 20632-2009.Covered serrated metal gaskets for use with steel pipe flanges(Class designated).1范围HG/T 20632规定了钢制管法兰(Class系列)用具有覆盖层的齿形组合...
HG/T 20633-2009.Metallic ring joint gaskets for use with steel pipe flanges(Class designated).1范围HG/T 20633规定了钢制管法兰(Class系列)用金属环形垫的型式、尺寸...
HG/T 20613-2009.Bolting for use with stc:l pipe flanges(PN designated).1范围HG/T 20613规定了钢制管法兰(PN系列)用紧固件的型式、尺寸、材料、标记、技术要求...
