19 Storm manholes, not of metal; Manholes, not of metal; covers and frames for manholes, not of metal; non-metallic gratings; drain covers and grates, not of metal; gullies, not of metal; drain gullies, not of metal; access chambers of non-metallic materials; access chamber covers of non-metallic materials; non-metallic access covers; inspection chambers made of non-metallic materials; inspection chamber covers made of non-metallic materials; shaft covers, not of metal; non-metallic rainwater traps and covers; non-metallic trap doors; fillable paving slabs, not of metal; non-metallic tree grilles; bollards, not of metal; non-metallic modular covers for gutters and hoppers.