. Enclosures are suppressed by special synthetic material(PC) in one time which has the sum of featrues:high hardness,stable size, good insulation,good thermal stability and chemical stability (resistant mineral acids.carbohydrates,saturated fatpetrol,fats and oils erosion stability),flame retardant(the material is non-flammable and it can be self-extingusing after combusition fire).
. Boxes are ofilled with foam seals and up to IP67according to EN (European Committee for Standardization ) standard 60529/10.91~impact rating IK09, long service life . They are designed with teansparent windows which is convenient and safe for operation. No need to open the doors.