... : forged type. Gaskets: Silicone,EPDM,NBR Connection: Weld,clamp,thread or flangeAdvantage: high quality+competitive price+fast delivery+1.5 years ... ,12position gear handle.(can be customerized) Surface Treatment: mirror/fully precision machined by LG-MAZAK machine. Quality/Certificate:ISO2000:2008,CE,TUV ...