acrylic bath tub machine for semi-automatic vacuum forming any design of Shower tray, shower room, bathtub, SPA, jacuzzi.etc Bathtub blister machine/Bathroom Equipment vacuum forming machine used for any design of Shower tray, shower room, bathtub, SPA, jacuzzi.etcafter changed the mould,the size of the bathtubs can also change,one machine can make many design from 700*700*150----2200*1600*750. ...