Metal Spiral Wound Gasket, PTFE Gasket, Graphite Gasket manufacturer / supplier in China, offering Inner and Outer Ring Type Metal Spiral Wound Gasket, ASME B16.20 Standard Oring Semi-Metallic Gasket Monel 400L Metal Graphite PTFE Spiral Wound Gasket, High Pressure Pipeline Flange Seal Oring Semi-Metallic Gasket SS304 Metal Graphite PTFE Spiral Wound Gasket and so on.