bellows sealed valvebellows-sealed valve波纹管: sylphon bellows; bellows; co ...式: type; style密封: seal; seal up; seal airtight ...阀: established house or power g ...波纹管式密封: bellows seal下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:波纹管式密封阀,即可在微信中查询翻译