duplex roller chain
duplex roller chain
[航空英汉词典]
duplex roller chainn.双滚子链
是什么意思,duplex roller chain的解释,duplex roller chain的翻译
[机械工程英汉词典] duplex roller chain
duplex roller chain
[航空英汉词典]
duplex roller chain是什么意思,duplex roller chain的解释,duplex roller chain的翻译
[机械工程英汉词典] duplex roller chain