Oring\Customer Rubber Seal Parts\Solicone Oring manufacturer / supplier in China, offering High Precision Durable Hydraulic Seals for Piston Rods O Ring/X Ring Loading. Ba/BS/Bu/Bd/B7/C2 Series Rod and Piston Seal. Ten Year Life for Store. PU/NBR/TPU, Heavy Duty Hydraulic Combined Compact Piston Seal Ring, Chemical-Resistant Mil. Spec. Viton® Fluoroelastomer O-Rings Oil-Resistant Buna-N O-Rings Oil-Resistant Soft Buna-N O-Rings Oil-Resistant Hard Buna-N O-Ring and so on.