＊We deliver from 1 pc on the same day throughout Japan.
Hanna Koatsu Kogyo Co., Ltd.
Professional of Square Flange
JIS B2291 is a flange used as a joint for piping exceeding 210kg/cm used for fuel of vessels, space rockets, etc. From the day of establishment, we, as a specialized manufacturer, have guaranteed the absolute quality and satisfied a lot of clients.
Produce to the last minute" "Attention to the quality of materials"
"Sincere response to the custom-made products" "Pride as a professional manufacturer"