DJM Boiler electrode rod type and DJY press in type series electric contacts are made of high-purity alumina ceramic tube as insulating material and sealed with high-temperature corrosion-resistant expansion alloy by special ceramsite welding process at high temperature (the expansion coefficient of alloy is the same as that of alumina ceramic tube).    The product is mainly inst...

DJY2612-115 Heat Resistant Alumina Ceramic Boiler water level sensor...

China Wear Resistant Ceramic Lined Steel Pipe Manufacturer ...