We are also the acrylic/ABS bathtubs and shower trays manufacturer,if you buy the bathtub making line from us,we will help you to set up the whole bathtub making line in your factory,or you can send your technicians to our bathtub making factory to learn all the bathtub making skills.the bathtub making line need the devices as follows,1.acrylic bathtub vacuum forming machine2.air and vacuum system:vacuum pump(making vacuum),vacuum tank(to storage the vacuum),air compressor(to make the high pressure air),air tank(to storage the air pressure)3.edge trimming machine(to cutting the bathtub and shower tray edges)4.resin and stone powder mixer5.fiber glass and resin spray gun(also can be done manually)6.bathtub designs and bathtub moulds