100tong is specialized in manufacturing of ductile iron grooved fittings,Grooved couplings,couplings, castings, pipe fittings and valves.There are more than 500 skillful workers in the factory. 100tong's annual production value has exceeded 0.2 billion RMB (About 30M USD) specially for grooved products. There are five workshops: Auto-casting workshop, Hand molding casting workshop,Machining workshop,Painting workshop,Moulding workshop.
    
     We have independent intellectual property rights of the new Intelligent Instrumentation and attained many items of national patents. The company has the institute of the valves and grooved fittings. We have many leading current achievements in the same industry.100TONG has passed ISO 9001 approval and the grooved fittings have been approved by FM,UL,ULC and CE approvals.

     Our company is specialized in grooved fittings, valves and pipe processing of the Corrosion prevention. We make great contributions for improving the qualities and reducing the cost of the project in field of feed water, fire protection, mineral, electrical power. All grooved fittings & valves use the modern casting tooling of electric furnace smelting, auto-casting, vermicularizing control. The all machining use the CNC machine. We have 8 medium frequency furnace, 2 auto-casting lines, more than 50 CNC machines, 2 epoxy & painting lines,1 hot-soak coating cable pipe line. 100tong's annual productivity has exceeded 50,000 tons.

    100TONG as the Shandong Well-know brand are enjoying high reputation among the customers for its faith, quality, price, and services. All of our products are on sale all over 300 cities of China, and export to United State, Canada, Europe, Middle East countries and regions