... certified.. 4. high-precision plastic cup plastic cup The quality of plastic cup can be guaranteed by the blow steps ... .. Following is the essential informations, for your reference Nameplastic cup mouldMould material45#, 50#, P20, H13, 718, 2738, NAK80 ... designing and making, injection production, painting, screen-printing , assembly, and stampings parts,casting parts, machinings parts as well ...