20 Curtain fittings, namely, plastic springs comprised in significant part of polyetheretherketone; metal-substitute plastic fasteners comprised in significant part of polyetheretherketone for holding linens in place; non-metal fasteners, namely, nails, wedges, nuts, screws, tacks, bolts and rivets, all comprised in significant part of polyetheretherketone; washers of plastic for fastening, comprised in significant part of polyetheretherketone; washers of plastics comprised in significant part of polyetheretherketone for tightening of nails, wedges, nuts, screws, tacks, bolts and rivets; washers of plastic comprised in significant part of polyetheretherketone for semi-conductors, valves, couplings, vehicles, motor vehicles and motor vehicle parts, construction use, machinery, telephones, copy machines and cartridges, electronics, electronic machines and devices, medical devices and equipment, water pumps, heat pumps and hand operated pumps, HVAC and electrical equipment, toys, display stands, furniture, furniture parts and woodworks, containers for commercial or industrial use, transport, storage and dispensing or mixing; non-metal locks comprised in significant part of polyetheretherketone, not electric; non-metal hardware, namely, springs of plastic comprised in significant part of polyetheretherketone