（封罐机）卷边输调节螺丝的英文

adjusting worm screw

• 封:    close; seal
• 罐:    jar; jug; pot; tan ...
• 机:    machine; engine
• 卷边:    edge curl; bowing; ...
• 输:    transport; convey
• 调节:    regulate; adjust; ...
• 螺丝:    screw