defective workmanship meaning in Hindi

There was a condition purporting to limit the sellers'liability for damage due to defective workmanship or materials in the goods sold.
The engines produced a total of which gave her a speed of around . " Vitse-admiral Popov " s propulsion machinery proved problematic throughout her life as a result of defective workmanship and poor-quality materials.
Japan's largest builder of nuclear power plants said Wednesday it planned to check for defective workmanship at five reactors after it was blackmailed by a former worker for one of its subcontractors who claimed he had deliberately underwelded parts.