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ISO 3545-1:1989 Steel tubes and fittings — Symbols for use in specifications — Part 1: Tubes and tubular accessories with circular cross-section
ISO 3545-2:1989 Steel tubes and fittings — Symbols for use in specifications — Part 2: Square and rectangular hollow sections
ISO 3545-3:1989 Steel tubes and fittings — Symbols for use in specifications — Part 3: Tubular fittings with circular cross-section
ISO 1608-2:1989 Vapour vacuum pumps — Measurement of performance characteristics — Part 2: Measurement of critical backing pressure
ISO 9288:1989 Thermal insulation — Heat transfer by radiation — Physical quantities and definitions
ISO 4902:1989 Information technology — Data communication — 37-pole DTE/DCE interface connector and contact number assignments
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