GRGT has 30 sets of three comprehensive test box, temperature + humidity + vibration and temperature + humidity + low pressure, including 10 tons x2 + 12.5 cubic x2, 20 tons +8 cubic, 5 tons +3 cubic, 3 tons +1.4 cubic, 1 ton + 1 cubic and other types. GRGT is qualified in combined environmental test for electric and electronic products, automotive electronics and aerospace electronics.