The pet in the cupboard door is the letter sign on each cupboard door. According to the requirements of inquiring about the pet disclosure of the cupboard door, it is known that the surface material of the pet cupboard door is composed of two layers, the upper layer is made of PET material, that is, the transparent part, and the lower layer is made of 3D color film material made of imported color paste, so it is necessary to affix a letter label. The pet door is made of polyester board. Pet is a highly crystalline polymer similar to milk color or banana color, which is called saturated polyester, also known as polyester resin. The cupboard door made of this material has smooth surface, good gloss, excellent stability and wear resistance.