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 ... ,ACM,IIR,Silicon rubber etc. are available.Material usage is based on the final product condition.Packing Spec.Standard packing: a ...