Fire door temperature resistant test device is prevented to pressure adjustable

• Main Authors: ZHANG ZEJIANG, TANG SHENGLI, HE SHIJIA
• Format: Patent
• Language: Chinese; English
• Published: 23.03.2018
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model relates to a prevent fire door temperature resistant testing technique field, disclose a fire door temperature resistant test device is prevented to pressure adjustable, including the laboratory, circulating fan, hot swap structure, air feeder and change -over valve, hot swap struc...