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KLN’s rubber product development and manufacturing business originated from providing the required serialized rubber parts for the product pinch valves of affiliated enterprises. It has high requirements for physical and chemical properties. After successfully serving the train, medicine, chemical industry, water affairs, mining and other fields for 10 years, Cronin decided to widely serve the society with its accumulated experience and achievements in rubber product development and manufacturing. To this end, we have established a functional rubber laboratory, specializing in developing and manufacturing rubber products with special requirements for customers with different needs.

The development and manufacturing business of rubber products includes:

• Product design
• Manufacturing of forming mould
• Product development and trial production
• Production
• Product testing