GB 20208-2006.Fireworks and firecracker-Barrel for shells.↑范围GB 20208规定了札花弹发射炮简(...

国家标准2023.07.22

GB 7287.1-1987.Detecting method for size, shape and exterlor of iofrared beater....

国家标准2023.07.21

GB 7287.2-1987.Measuring method for the surface tem perature distrlbuton of infr...

国家标准2023.07.21

GB 7287.3-1987.Measurlog method for the radio between radiant surface and rear s...

国家标准2023.07.21

GB 7287.4-1987.Measuring method for tem perature rise tlme andfall time of lofra...

国家标准2023.07.21

GB 7287.5-1987.Testing method for bearing cold and hot alternating change of inf...

国家标准2023.07.21

GB 7287.6-1987.Measuring method for insulation reslstance of Infrared heater.GB...

国家标准2023.07.21

GB 7287.7-1987.Measurlog method for electrlc-to- radiaot power traosfer efflclen...

国家标准2023.07.21

GB 7287.8-1987.Measuring method for pow er devlatlon rate of infrared heater.GB...

国家标准2023.07.21

GB 7287.9-1987.Measuriog method for norm al total emittance of infrared beater.2...

国家标准2023.07.21