What a difference a week makes just now, verges frothy with cow parsley and hemlock, hillsides painted yellow with colza. |
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Bio-oil may be produced from more than 300 plant kinds such as colza, sunflo-wers, olives, soya etc. |
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The companies said the new production facilities would utilize a vegetable oil feedstock derived from raw materials including colza and sunflower. |
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Technical advances included structural cast iron, Colza oil lamps, patent iron grates and stoves, Bramah water closets, central heating and steam-pumped water supplies. |
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