| Tsukuba Head Office & Plant | |
| ［Location］ Hanashima-Shinden, Aza-Kitahara No.4, Tsukuba City, Ibaraki Pref. 305-0875 Japan ［ＴＥＬ］(029)836-9211 ［ＦＡＸ］(029)836-4135 ［Operation commencement］ August 1967 ［Site area］27,000m2 ［Building area］9,000m2 ［Main manufactured product types］ Oil seals, valve system seals, AF products and precision rubber parts. |
 |
 |
|
| Tsukuba-Nishi Plant | |
| ［Location］ Dai 953-1, Tsukuba Mirai City, Ibaraki Pref. 300-2401 Japan ［ＴＥＬ］(029)837-2781 ［ＦＡＸ］(029)837-2785 ［Operation commencement］ March, 1985 ［Site area］26,000m2 ［Building area］5,800m2 ［Main manufactured product types］ Precision rubber parts for OA devices, consumer electrical products and sliding door products. |
 |
|
|
| Mase Factory | |
| ［Location］ Mase Sandoyama 851, Tsukuba City, Ibaraki Pref. 300-2656 Japan ［ＴＥＬ］(029)838-1371 ［ＦＡＸ］(029)837-0871 ［Operation commencement］August 1980 ［Site area］3,400m2 ［Building area］1,200m2 ［Main manufactured product types］Reed valves. |
 |
