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There are many different kinds of valves and fittings that are used on many different kinds of devices. Some valve and fitting retailers specialize in selling water pipe valves and fittings while others specialize in selling valves and fittings for cars, hydraulic equipment, pneumatic equipment, industrial machinery and diving equipment. Fittings are devices that are used to tie pipes together and tubes together. Valves are mechanisms that are used to control or stop the flow of fluids and gases through tubes and pipes. Auto mechanics, manufacturers, plumbers and many kinds of repair services all buy valves and fittings. Different valve and fitting manufacturers make different kinds of fittings and valves. Different valve wholesalers distribute different kinds of valves. Different fittings wholesalers distribute different kinds of fittings. Valves are used on tires, brass instruments, diving equipment and many other kinds of devices.
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