... alloy; removing the residual stress of forge piece, welding piece,? cool punching piece, and workpiece punching, so as to defend the ... H500 mm, Stainless steel double-layer water-cooling Highest attained vacuum 8.0×10-4Pa8.0×10-5Pa8.0×10-5PaPower ... 10000?10000?1000Vacuum measurementA suit of High-low Digital Composite Vacuum GaugeVacuum controlAvailable Manual/PLC/PLC+HMI/PC control (optional)Protection ...