CB/T 4273-2013 Hydraulic watertight hinged fireproof door.1范围CB/T 4273规定了液压铰链式防火...

行业标准2023.07.27

CB/T 4275-2013 Visual method for evaluation of surface irregularities of steel c...

行业标准2023.07.27

CB/T 4274-2013 General specification for flap rudder.1范围CB/T 4274规定了船舶襟贸舵的分类、要求及...

行业标准2023.07.27

CB/T 4276-2013 Marine cast iron flange dual-row stop valves-case.1范围CB/T 4276规定了...

行业标准2023.07.27

CB/T 4277-2013 Marine flanged cast iron single arrangement exhaust stop box valv...

行业标准2023.07.27

CB/T 4278-2013 Marine flanged cast iron single arrangement suction stop box valv...

行业标准2023.07.27

CB/T 4279-2013 Marine flanged cast iron single arangement suction stop check box...

行业标准2023.07.27

CB/T 4280-2013 Bellows type titanium alloy flanged stop valves.1范围CB/T 4280规定了法兰...

行业标准2023.07.27

CB/T 4281-2013 Bellows type titanium alloy flanged stop check valves.1范围CB/T 428...

行业标准2023.07.27

CB/T 4282-2014 Pull-down type square ceiling panel.1范围CB/T 4282规定了下拉式方型天花板的结构和标记...

行业标准2023.07.27