- Using the data obtained from the customer, heat values, sizes and materials are fully checked according to the requirement. After the design works, it is sent to the manufacturing team.

- Consider the heating temperature and the durability for use.

- To make the original paper where carbon is sprayed, synthesize the PET material and the PE material.

- Set the PET/PE thickness properly according to the specification.

- Spray the carbon pastes that generates the heat to the original paper.

- According to the design specifications, spray the paste made of carbon and silver to the designed circuit pattern.

- t is critical to maintain the consistent thickness and resistance.

- To make an electrode on the film, synthesize silver and copper boosters.

- A preprocessing technique is very critical in preventing sparks and securing insulation. This process directly affects the product's safety.

- The original paper with carbons sprayed, the booster and the PET/PE synthesized box are laminated now.

- The insulation and humid prevention performance are directly affected by this process. It also determines the level of completion and durability of the product.

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- Once the film is laminated, you should visually inspect the electrical performance. Check the distribution of carbon and the condition of the original paper.

- Once the visual inspection is passed, select a sample from each roll to perform electrical performance tests. Check the heat values and the self resistance. Check the overall completion of the product and its electrical safety.

- Once the quality inspection is passed, the product needs to go through a high temperature hardening process before being packaged. The purpose of hardening is to optimize the adhesion ability of carbon and to secure the combination of the booster and the original paper.