nic Products—Test Ca: Damp Heat, Steady State*GJB150.3-86(MIL-STD-810D) Environmental Test Methods for Military Equipment?High Temperature Test*GJB150.4-86(MIL-STD-810D) Environmental Test Methods for Military Equipment--Low Temperature Test *GJB360.8-87(MIL-STD.202F): Highly Accelerated Life Testing (High Temperature) Related PatentThe?Environmental?Chamber?for?Automotive?testing? attained a patent (No. CN103816947B) for its constant temperature and humidity design and air duct structur