Head:Hexagon Body material:Brass Window:Tempered glass Seal ring:NBR/FPM Reflector plate:PSF Working temperature:-30+180 centi-degree Size:M16X1.5,M20X1.5,M27X1.5,M33X1.5,G 3/8,G 1/2,G 3/4,G 1 Certificate:CE,ISO9001 Packaging Details:General packing for exproting. Port:Ningbo,China