1.durable in liquid material,mineral oil,lubricant and other different environment2.materia:SR,NBR,EPDM,NR,SBR3.color:available in any color,according to customer's requirement4.working pressure:<= -35--200 centigrade5.specification:standard and non standard available,different sizes available6.packing;standard packing(inner:poly bag  outer:carton) or customerizedcertification:ISO9001 ,SGSwe are looking forware for your visit to our factory.