graduating valve spring

网络释义

1.	节制阀弹簧进出口行业词汇英语翻译(G) ... graduating spring 递动弹簧 graduating valve spring 节制阀弹簧 graduating valve 节制阀 ... zftrans.com
2.	递开阀簧 valve 阀门专业词汇A-Z ... graduating valve lever 递开阀杆 graduating valve spring 递开阀簧 graduating valve 节制阀 ... www.douban.com

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