As the country's requirements for building energy-saving continue to increase, various regions have introduced stricter building energy-saving standards. 

This has prompted hollow glass door and window manufacturing machinery companies to accelerate technological innovation and equipment upgrades to produce hollow glass products that meet higher energy-saving standards. 

For example, some regions require that the hollow glass used in new buildings must meet higher thermal insulation and sound insulation performance indicators, which forces companies to transform and optimize production equipment.