injection mouldinginˌjection ˈmoulding noun [uncountable] 
a process of making something in which plastic is forced into a particular shape, using a lot of pressure—injection-moulded adjective: 
injection-moulded fittings
a process of making something in which plastic is forced into a particular shape, using a lot of pressure—injection-moulded adjective: injection-moulded fittings