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| Dufferin Concrete, division of Holcim (Canada) Inc. | 2300 Steeles Avenue W., Ste. 400 Concord, ON L4K 5X6 | 905-761-7800 Fax: 905-761-7700 | Plants:
| | | | 519-773-2401 | | 905-563-5412 | | 905-623-4427 | | 905-475-6630 | | 905-319-2122 | | | | 416-744-2206 | | 905-475-6630 | | 905-679-3994 | | | | 519-745-1151 | | 519-666-0425 | | | | 905-832-2861 | | 905-475-6630 | | 416-746-2222 | | 905-371-8353 | | | | | | 705-742-3401 | | 705-742-3401 | | 416-293-4148 | | 519-426-6472 | | 519-271-5162 | | 519-688-0415 | | 416-746-2222 | | 905-563-5412 | | 905-961-7800 |
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