Patent Certificates Nut Loosening Prevention Structure of Synthetic Resin Pipe Joint Patent No.10-2679638
Patent Certificates Nut Loosening Prevention Structure of Synthetic Resin Pipe Joint Patent No.10-2135898
Patent Certificates Leak Prevention Structure of Synthetic Resin Pipe Joint (USA) US 1063797B2
Patent Certificates Diaphragm Manufacturing Method Patent No.10-1969807
Patent Certificates Indicator Valve Patent No.10-1969806
Patent Certificates Leak Prevention Structure of Synthetic Resin Pipe Joint (Japan) 6322251
Patent Certificates Leak Prevention Structure of Synthetic Resin Pipe Joint Patent No.10-1808723
Patent Certificates Nut Loosening Prevention Structure of Synthetic Resin Pipe Joint Patent No.10-1808719
Patent Certificates Leak Prevention Structure of Synthetic Resin Pipe Joint Patent No.10-1808705
Trademark Rights SUPER SEALLOK Registration No.40-1299300
Trademark Rights SUPER SEALLOK Registration No.40-1262629
Patent Certificates Multi-Layer Tube Patent No.10-1694354
Utility Model Registration Certificates Tube Coupling Structure Registration No.20-0482068
Utility Model Registration Certificates Branch Valve Registration No.20-0477515
Design Registration Certificates Branch Valve Registration No.30-0770619
Patent Certificates Apparatus and Method for Manufacturing Blow-Molded Fluororesin Bellows with Uniform Thickness Patent No.0534063
Patent Certificates T-shaped Pipe Fitting with Fluororesin Membrane Registration No.0337173
Patent Certificates Blow-Molded Fluororesin Bellows with Uniform Thickness and Its Manufacturing Apparatus Registration No.0335580