Cartridge heater 20x90mm,400v,600w with SS flange 1 year quality guarantee Cartridge heater20x90mm,400v,600wwith SS flange1 year ... resistance coil is placed around the solid MGO tube filled with high temperature MGO powder and compacted for faster and efficient ... Drawing of special type configuration Cartridge heater 20x90mm,400v,600w,with SS flange-1 year quality guarantee