vacuum seaming

... 真空封罐机 vacuum seamer 真空封罐 vacuum seaming 真空[无音]截切机 vacuum silent cutter ...

 vacuum closing

... vacuum capping 真空封瓶 vacuum closing 真空封罐 vacuum column 真空蒸馏塔 ...

 vacuum can sealing

... vacuum pack sealing machine 真空包封机 vacuum can sealing 真空封罐 vacuum can sealing machine 真空封罐机 ...