... 3.GB,ANSI,EN,PN 4.carbon/stainless steel... KWT Rubber Flexible Elbow1,Material: Carbon Steel2,Technics: Forged Type: ... ,acid,Weak alkali.a...15,service offer: custom16,rubber pipe joints is composed of fabric, metal materials reinforced ... the compensation of movement. rubberpipe joints Features1, small size, light weight, good flexibility, easy installation and maintenance.Nominal DiameterLength/ ...