... water pipe oring sealing NBR ShoreA50,60,70,80,90 black,white,red,green,yellow,blue NSF,FDA,WRAS,TZW,W270,UL ... Lead time15days Itemwater pipe oring for sealingDescriptionMaterial:NBR, ... Customized specificationCertificationISO9001-2008, TS16949, NSF, WRAS, UL, TZW, ACS, FDAMaterialAll raw material meet ... Standard packing: a. plastic bag inside with barcode; b. carton outside, 46*34 ...