... 3.GB,ANSI,EN,PN 4.carbon/stainless steel... KWT Rubber Flexible Elbow1,Material: Carbon Steel2,Technics: Forged Type: Elbow3,Place ... ,steam,oil,acid,Weak alkali.a...15,service offer: custom16,rubber pipe joints is composed of fabric, metal materials reinforced ... rubber parts and used for metal pipe system damping vibration isolation, ...