Junctions for pipes or piping; connectors and connections for pipes or piping; fittings for pipes or piping; couplings for pipes or piping; elastomeric articles for use with pipes or piping; pipe connectors, being parts of sewage, sanitary or water supply installations; connectors for drain pipes, pipes of metal, plastic and earthenware; parts and fittings for all the aforesaid goods; all included in Class 17.;