Home >> Overview


  • Main Pillar established in Taichung, manufacturing hand-made tool and founded YF brand.
  • Purchase CNC lathes and machining center, transforming to manufacture stainless steel flange.
  • Construction of the plant in Taichung Industrial Park, transforming to produce stainless steel ball valve.
  • Construction of class 1,000 and 10,000 clean room, manufacture super purity ball valve, used in optoelectronics、 semi-conductor、biotechnology、aerospace etc.
  • Focus on ECB (Electro Chemical Buffing), rough surface (smooth degree) reach 0.1 ~0.01µm, meet SEMI standard, high quality mirror surface technology, stable quality and high efficiency.