Metal graphite spiral wound gasket, graphite ring, the preferred Langfang Insein sealed stainless steel with flexible graphite tape or asbestos tape, Teflon tape overlapping winding, welding endpoint from. Main use: contact with high temperature, high pressure steam, oil and gas, solvents, gas, heat transfer media, such as pipes, flanges, valves, pumps, import and export a variety of heat exchanger, reaction tower, observation holes, hand holes, shell cover and other parts of the seal. Specifications: thickness of 2.5, 3.2, 4.5, 5, 6, 8 mm nominal diameter :10-3000mm. Contact Diaojing Li telephone; 15,003,162,969 QQ; 759219975