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ALUSEC UK LTD

W. HALLAM CASTINGS LIMITED

HB ALUMINIUM FABRICATIONS LTD

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M T W ARCHITECTURAL LTD

RALLOY ENGINEERING

WEST YORKSHIRE GLAZING UK LTD

MIDAS ALUMINIUM LTD

FOX ALUMINIUM SYSTEMS LTD

S & G ALFAB

FREEGATE METAL PRODUCTS LTD

HW ARCHITECTURAL LTD

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MERLIN WINDOW SYSTEM

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THOMAS BROTHERS (LEEDS) LTD

GLASS & FRAMING SOLUTIONS

LION FABRICATIONS

GOLDSTAR DOUBLE GLAZING LTD

W A BILLING

VULCAN ALUMINIUM LTD

M I S GROUP

SHAW BROS