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Walraven operates three divisions. BIS Fixing Systems for heating systems, sanitary installations, sprinkler pipes, air ducts, cooling systems, cable troughs and much more.BIS Fire Protection Systems for smoke proof and fire resistant sealing of pipe apertures and recessed light fittings, as well as products for the fire retardant fixing of pipes and BIS Sanitary Systems Concealed Pre Wall systems, Alpro inspection hatches and products for sanitary installations.

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Tel: 01295
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Halfen supply a wide range of structural connectors and fixings to include: cast-in channels, brickwork support systems and facade support systems, concrete reinforcement products, framing systems and precast lifting & support systems. Further technical information is available on the BPi Download library on on the Halfen web site.

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Tel: 01582
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Unistrut have established a reputation for the quality of our goods and services throughout the building and construction industry. The company is recognised as a reliable major supplier of mechanical and electrical support systems and services. This reputation is the result of our continuing commitment to develop and maintain the highest possible quality standard in the production of our product range. Unistrut’s hot dipped galvanized finished channels, cable tray and cable ladder, in addition to galvanizing to BS EN ISO 1641, receive additional protection in the form of a clear passivation coating. As part of this protection the coating minimizes the risk of staining effects, such as handling and wet storage stain (white rust), which are prevalent during the initial period of the product's life cycle. Unistrut’s choice of high strength steel utilized for our bracket components over common grade steels reflects the company's commitment to quality and performance. The steel, grade S315MC to BS EN 10149-2, is a modern low-alloy steel with specific high yield properties for cold forming. The steels are micro-alloyed with niobium, titanium and vanadium, which enables low carbon and manganese contents to be maintained. The steels are produced by metallurgical processes that ensure very high purity of the steels, and they are finished in a carefully controlled thermo-mechanical rolling process that ensures consistent properties.

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Tel: 0121 580

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