介绍了大口径船用瓶头阀的结构、性能和设计要点，该阀具有设计新颖，密封可靠的特点。

To introduce the structure, performance and key elements of the design of large diameter Marine cylinder valve. It is original in choice of design and has a reliable sealing feature.

youdao

介绍了大口径船用瓶头阀的结构、性能和设计要点，该阀具有设计新颖，密封可靠的特点。

To introduce the structure, performance and key elements of the design of large diameter Marine cylinder valve. It is original in choice of design and has a reliable sealing feature.

youdao