Explanatory notes
… or equipment; these fittings fall in heading 85.47 if they consist wholly of insulating material (apart from any minor … deposits of non‑insulating materials, such as water, salts, dusts, oxides and smoke. Insulators are often given bell, … hard and non‑porous, e.g., ceramic material (porcelain, steatite), glass, fused basalt, hardened rubber, plastics or …