Product Description All kinds sealing gasket:non asbestos,NBR.SBR,EPDM,Viton,graphite,PTFE Gauge Glass, Level Gauge, Quartz Glass, Reflex Gauge Glass, Sight Glass, Transparent Gauge Glass Custom flange rubber gasket Thickness: 0.3~6.0mm custom thickness is available. OEM service : logo printing ,wire mesh insert and graphite coated Package: Each size with plastic bag then in carton or wooden case Available color: Red,Black,Green ,blue and etc Gasket Handle:available