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Mechanical locking device, the twist. General technical requirements
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Information technology. The Industrial internet of things. Reference architecture
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Sets of carbon steel and aluminium alloys. General specifications
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Tube connections. Union passage tees for Pn 16 MPa (160 kgf/cm2). Construction and dimensions
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Domestic and non-domestic gas-fired air heaters. Supplementary requirements for condensing air heaters
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