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pipe appurtenances Various pipe appurtenances or fixtures are required to carry out inspections, tests, and cleaning and repairing works on ...

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      TOTAL STATION A total station is an optical instrument commonly used in construction, surveying and civil engineering. It is useful for ...
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    WASTEWATER TREATMENT prepared by Mrs Ancy STEPS IN WASTEWATER TREATMENT 1.     SCREENING AND PUMPING The incoming wastewater passes through ...
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    pipe appurtenances Various pipe appurtenances or fixtures are required to carry out inspections, tests, and cleaning and repairing works on ...