We retain design, manufacturing and application technology for semiconductor type and contact combustion type gas sensor and shock sensor.
  Seju Co.,Ltd has advanced technology for design, manufacturing, and application technology of gas sensor, acceleration, and shock sensor.

Even though the product is same, manufacturing costs and performances vary depending on who manufactured it. We retain excellent mass production technology with which we can manufacture good product at a lower cost based on excellent planning capability and design experiences.   Reserve Battery
Battery which is used for fuze for military use requires at least 20 years storage with stable operation even under severe cold temperature and impact. Reserve batteries of big sizes were developed but the development of small size one is extremely difficult due to the danger of its electrolyte. The Reserve Battery which our company developed is the smallest in size while it is high performance and it can be used for a variety of purposes.