... bathtub, SPA, jacuzzi.etc Bathtub blister machine/Bathroom Equipment vacuum forming machine used for any design of Shower tray, ... )7.5kw air compressor and 7.5kw vacuum pumpbathtub forming machine,vacuum forming machine,ABS bathtub machine,plastic forming ... heating area → forming by air pressure(Blown) → lower-mold up → vacuum forming → cooling → automatic degassing →mold ejecting → lower mold down ...