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Established in 1971, Ta Toong Wang Machinery Co., Ltd. has been specializing in various kinds of Piston Rings. The special purpose piston rings are mainly applicable to ship main engine/ aux engine, industrial machinery, and hydraulic machinery. Our piston rings are widely used in maintaining, repairing and replacing many famous brand machines. In order to conform with the certain hardness and flexibility standard, the product material, high-class casting iron, is refined with special methods.[...]