HG/T 21521-2014
垂直吊盖带颈对焊法兰人孔
Welding neck flange manholes with davit to vertical cover
2014-07-09
HG/T 21520-2014
垂直吊盖带颈平焊法兰人孔
Slip on flange manholes with davit to vertical cover
2014-07-09
HG/T 21599-2014
垂直吊盖衬不锈钢人孔(附条文说明)
Lining stainless steel vertical hanging cover manholes
2014-07-09
HG/T 21519-2014
垂直吊盖板式平焊法兰人孔
Plate flange manholes with davit to verticla cover
2014-07-09
HG/T 21523-2014
水平吊盖带颈平焊法兰人孔
Slip on flange manholes with davit to horizontal cover
2014-07-09
HG/T 21524-2014
水平吊盖带颈对焊法兰人孔
Welding neck flange manholes with davit to horizontal cover
2014-07-09
HG/T 21598-2014
水平吊盖衬不锈钢人孔(附条文说明)
Lining stainless steel horizontal hanging cover manholes
2014-07-09
CB 1000-1982
耐压人孔盖
1982-11-04
HG/T 21522-2014
水平吊盖板式平焊法兰人孔
Plate flange manholes with davit to horizontal cover
2014-07-09
HG/T 21527-2014
回转拱盖快开人孔
Quick open manholes with hinged dome cover
2014-07-09
KS V ISO 5894(2017 Confirm)
조선 - 볼트 조임용 맨홀
船舶和海洋技术螺栓盖人孔
2012-11-06
DIN 4271-3
Class B 125 manhole tops - Covers
B125类人孔盖.第3部分:盖
1998-08-01
HG/T 21526-2014
椭圆形回转盖快开人孔
Elliptical quick open manholes with hinged cover
2014-07-09
HG/T 21518-2014
回转盖带颈对焊法兰人孔
Welding neck flange manholes with hinged cover
2014-07-09
HG/T 21517-2014
回转盖带颈平焊法兰人孔
Slip on flange manholes with hinged cover
2014-07-09
QC/T 1065-2017
道路运输易燃液体危险货物罐式车辆 人孔盖
Road tanker for flammable liquid goods transportation-Manhole cover
2017-01-09
HG/T 21596-2014
回转盖衬不锈钢人孔(附条文说明)
Lining stainless steel rotary cover manholes
2014-07-09
EN 13317-2018
Tanks for transport of dangerous goods - Service equipment for tanks - Manhole cover assembly
运输危险货物的坦克 - 坦克的服务设备 - 人孔盖组件
2018-07-11
DIN 19596-3
Manhole tops without vents, classes A 15 and B 125, circular - Part 3: Covers
A 15和B 125级圆形无通风口人孔盖.第3部分:盖
2012-10-01
MIL MIL-F-3922/57B
FLANGE, WAVEGUIDE (COVER) (ROUND, 8 HOLE (2 HOLES CENTERED HORIZONTALLY, 2 HOLES CENTERED VERTICALLY) (SUPERSEDING MIL-F-3922/57A)
波导管法兰（盖）（圆形 8孔（2孔水平居中 2孔垂直居中）（取代MIL-F-3922/57A）
1976-05-04