Explanatory notes
… steam, gas, water, petrol, oil or other fluids in engines, machine‑tools, pumps, transformers, hydraulic or pneumatic … or cycle brake cables). It does not cover similar products which are not used as tubes or pipes (e.g., extending … 40.09 ). (b) Flexible tubing made into the form of machinery or vehicle parts, etc., e.g., by assembly with …