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GB/T 20957.2-2007
Test conditions for machining centres - Part 2: Geometric tests for machines with vertical spindle or universal heads with vertical primary rotary axis (vertical Z-axis)
GB/T 20957.1-2007
Test conditions for precision machining centres - Part 1: Geometric tests for machines with horizontal spindle and with accessory heads (horizontal Z axis)
GB/Z 19219-2003
Industrial automation--Time-critical communications architectures--User requirements and network management for time-critical communications systems
GB 18568-2001
Machining centres--Safeguarding specification
GB/T 18400.8-2001
Test conditions for machining centres--Part 8:Evaluation of the contouring performance in thethree coordinate planes
GB/T 18400.6-2001
Test conditionsfor machining centres--Part 6:Accuracy of feeds，speeds and interpolations