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Concrete protection sheet with signalling and reflective layer
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Thermoplastic sealing system for construction industry and mfr. process - comprises two sheets, one with integral distance pieces which are welded to the smooth face of second sheet to form twin=skinned sheet
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Welding apparatus
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Tapping clamp for pipes, especially for gas or water
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Process for producing plastic sheets with protuberances and plastic sheet with protuberances
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Process and device for welding of tubular plastic parts
