{TAIL ~ The present invention} provides a lubricating apparatus for ball valves which ensures a constant supply of lubricant to the valve and its working parts which, consequently, reduces {HEAD ~ chances} of valve seizure and damage due to corrosion 
{ TAIL ~ The present invention } provides a lubricating apparatus for ball valves which ensures a constant supply of lubricant to the valve and its working parts which , consequently , reduces { HEAD ~ chances } of valve seizure and damage due to corrosion
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