Acrylic thermoformed outdoor sign. Thermoforming process or heat bending process. Custom design. Detailed product description:1. Acrylic thermoformed outdoor sign , customized vacuum formed outdoor sign.2. Custom design, thermoforming process.3. OEM service. Lijiu Plastic's Thermoforming ProcessLijiu Plastics is a high quality provider of products and services. The products that we provide are ...