Clients (Order inequality)
 Arai metal trading company Co.,Ltd . Itochu Marubeni tokushuko Co.,Ltd
 Iwata kotetsu Co.,Ltd . Iwatani Industry Co.,Ltd . UEX Co.,Ltd
 Umetoku Co.,Ltd . F.hamamatsu Co.,Ltd . M.M.C Co.,Ltd
 Shinnihon seitetsu Co.,Ltd . Sumitomo metal industries Co.,Ltd
 Sumida trading company Co.,Ltd . Taikou kougyou Co.,Ltd
 Daido industry Co.,Ltd . Daido special metal Co.,Ltd . Daito steel Co.,Ltd
 Tokushu kinzoku Excel Co.,Ltd . Tokyo-Stainless kenma Co.,Ltd
 Tomiyasu Co.,Ltd . Dowa metanix Co.,Ltd . Nikko-metal Co.,Ltd
 Nikko-shouji Co.,Ltd . Nihon yakin kogyo Co.,Ltd . Hu-com Co.,Ltd
 Hiyoshi syaten Co.,Ltd KK-hirai Co.,Ltd . Hitachi-densyou Co.,Ltd
 Material-house Co.,Ltd . Mitsubishi corporation Unimatals Co.,Ltd
 Miyoshi metal Co.,Ltd . Myodo metal Co.,Ltd
 


Bankers
Shibashin credit association
Bank of Yokohama
Yokohama credit association