Our Product


In 1982, we began with a simple idea "Pressure is our business". Since then, our XP2I has become the cornerstone of an easy to use digital pressure gauge with software. Day after day we work harder, the next big thing is the introduction of nVision reference recorder. Year after year, we strive to surpass your expectations and year 2013, Crystal was acquired by Ametek to become Crystal Ametek to provide complete choices of calibration tools in Pressure and Temperature.view more


AMETEK continues to develop new techniques to improve performance, accuracy, convenience and functionality of the well-known JOFRA calibration products. By doing so, we maintain our position as the leading worldwide manufacturer of temperature dry-block calibrators.view more


Reborn as Seiwa Denki in 1948 from its business called Mitsuboshi Denki, Mr Gisaburo Masuyama developed the lighting fixture and turned the company from trading to manufacturer. In 1999, Seiwa's Industrial Lighting Business acquired ISO9001 certification and then ISO14001 certification in 2003 and developed the barrier-free LED's in 2010. Nowadays Seiwa offers industrial lighting products with high Japanese quality for Explosion-proof type Lighting Fittings and Explosion-proof type Control Boxes.view more