N1\N2\S型燃氣圈

　　HONGLI is China´s leading manufacturer of N1\N2 \S Type Gaskets for gas pipeline, being responsive to customer requirements, we have developed various types of N1\N2 \S Type Gaskets.
　　Perform Standard:HG/T 3092-1988 \GB/T 13295-2008
　　Material:SBR