JT/T 362-2013
内河船舶下舱门盖
Lower-tank doorcover for inland waterway vessels
2013-10-09
ADS AS3179
Handhole Cover - Curved
手孔盖-弧形
1975-10-01
ADS AS3170
Assembly of Handhole Cover
手孔盖的组装
1949-11-16
HG/T 21535-2014
回转盖快开手孔
Quick open handholes with hinged cover
2014-07-09
T/ZJL 0008-2022
船用箱柜手孔盖
2022-09-30
SAE AS3170-1
AS3170 Assembly of Handhole Cover
AS3170手孔盖装配
1949-11-16
SAE AS3179-4
AS3179 Handhole Cover - Curved
AS3179手孔盖-弧形
1975-10-01
HG/T 2145.1-2015
搪玻璃平盖手孔
Handhold for glass-lined vessel
2015-07-14
HG/T 21532-2014
回转盖带颈对焊法兰手孔
Welding neck flange handholes with hinged cover
2014-07-09
HG/T 21602-2014
平盖衬不锈钢手孔(附条文说明)
Lining stainless steel elliptic quick opening manholes
2014-07-09
HG/T 21603-2014
回转盖快开衬不锈钢手孔(附条文说明)
Lining stainless steel rotary cover quick opening manholes
2014-07-09