Welcome to the official website of Shijiazhuang Yonking Building Materials Wood Industry Co. LTD.
Products&Technology
The series of civil air defense doors is another important product system of Yonking. The products cover all products of the two standard systems of "RFJ1-2008" and "07FJ01-03". The classification of civil air defense doors is very distinct, including steel structure protective her doors and hermetic doors, reinforced concrete protective hermetic doors and hermetic doors, electric protective airtight doors and airtight doors, and other types of civil air defense equipment.