check-valve ball seat的意思|示意
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英 / /
止回阀球座
check-valve ball seat的网络常见释义
止回阀球座 ... check valve 单向阀; 单向活门; 检验阀 check-valve ball seat 止回阀球座 check-valve ball spring 止回阀球弹簧 ...
check-valve ball seat相关短语
1、 check valve ball seat 止回阀球座