1.manufacturer, with more than 20 years experience 2.support OEM 3.certification:ISO9001,ISO14001 POLYURETHANE INSULATION 90 DEGREE ELBOWWidely used in the urban centralized heat supply, warm room, coal, petroleum, chemical and other industries’ anti-corrosion insulation work.1.Degrees:30°,45°,60°,90°2.Medium temperature: 50°C—140°C 3.Operating pressure: <1.6Mpa 4.Laid way: Buried, overhead, ...