... ring: NBR Body: forgedItem: fast fitting Size: 1/2", 5/8",3/4",1",1Code: 020454Material: brassProcess: forging O-ring: NBR ... research, manufacture, sale and trade into a whole. The major products are valves, pineline parts, water-heating equipments, bathroom accessories, ... stand flow work ensures fine stability of the product quality. The products sell far to lots of Europe and America countries such as ...