HG/T 20614-2009.Specification for selection of steel pipe flanges, gaskets and bolting(PN designated).1范围HG/T 20614规定了钢制管法兰、垫片和紧固件(PN系列)配合使...
HG/T 20615-2009.Steel pipe flanges(Class designated).1总则1.0.1HG/T 20615规定了钢制管法兰(Class系列)的公称尺寸、公称压力、材料、压力-温度额定值、法兰...
HG/T 20623-2009.Large diameter steel pipe flanges(Class designated).1总则1.0.1 HG/T 20623规定了大直径钢制管法兰(Class系列)的公称尺寸、公称压力、材料、压力...
HG/T 20627-2009.Non-metallic flat gaskets for use with steel pipe flanges(Class designated).1范围HG/T 20627规定了钢制管法兰(Class系列)用非金属平垫片(具有嵌人物...
HG/T 20698-2009.Code for design of heating ventilation and air conditioning for chemical plant.1.1 目的1.1.1 为在化学工业行业的采暖、通风与空气调节设计中,保证...
HG/T 21510-2005.Specification on content and procedure of preliminary design file for rubber plant.1总论1.1 概述1.1.1 工厂概况1建设单位概况:简要说明建设单位的概...
HG/T 21557.3-2006.Plastic cascade ring packing.1总则1.0.1 目的。为了在工程设计及工程建设中应用塑料阶梯环填料能遵循统-的规格标准，正确选用，以...
HG/T 21559.3-2005.Stainless steel wire corrugated packing standard.1总则1.0. 1HG/T 21559.3规定了不锈钢丝网波纹填料产品的标记、规格及特性,材料,制造要求，...
HG/T 21574-2008.Chemical equipment lifting lugs and engineering technical specification.1范围HG/T 21574规定了化工设备或设备部件吊装用吊耳的分类、型式代号、...
HG/T 20683-2005.Selected specification of design in refractory insulating material for chemical industrial furnace.1总则1.0.1为化学工业炉设计时选用耐火、隔热材料提...
