PT Pentasari Pranakarya has standard of quality in mass-manufacturing inner tubes.

Improvement and development of all aspects of the manufacturing process such as production machines, supporting machines, human resources and work mechanisms are continuously implemented to ensure product quality, effectiveness and innovation.

The entire production process begins with testing the feasibility of raw materials in the laboratory. The next step is processing the tested raw materials where PT Pentasari Pranakarya always monitors the quality of products at every stage of manufacturing. The finished inner tube will be checked in quality control and packaged to be distributed throughout Indonesia and the International market.