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COVNA GROUP Co., Limited Enterprise introduction COVNA GROUP Co., Limited is COVNA GROUP Co., Limited. Was established in 1999, specializing in the production of flow in the pipeline special [solenoid valve, electric valve and pneumatic valve and air source treatment unit], [families, under its own brand name willy COVNA "] marketing all over the world, and in the international market and to Europe, the U. S., Japan and other major industrial countries competition, quality deeply sure. At present in two position twoway valveway valve [solenoid valve] in... [Details] |