Giant Precision Instrument Co.

Established in 1993, GPI is the industry leading professional in Taiwan producing survey/construction laser and other accessories. We strive to make advancement with our products, and share good reputation among our business partners worldwide.

上煇之產品涵蓋雷射墨線儀(電子式，擺錘式，貼牆儀等)、掃平儀、光學測量儀器、測距儀、及相關光學附件，雷射儀器附件等，系列產品已超過200種。並致力於研發技術以發展自有品牌。