KWT Rubber Flexible Elbow 1.DN50-300 2.PN:6/10/16 3.GB,ANSI,EN,PN 4.carbon/stainless steel... KWT Rubber Flexible Elbow1,Material: Carbon Steel2,Technics: Forged Type: Elbow3,Place of Origin: Jinan China (Mainland)4,Model Number: KWT5,Brand Name: GMR Elbow.6,Connection: Flange7,Shape: Elbow8,body color: black flange color: sliver flange.9,working pressure:6/10/1610,nominal diameter: 50mm-300mm11, ...