UPVC windows are cleaned with water and vinegar mixed in a sprayer. Jupiterimages/BananaStock/Getty Images. Unplasticized polyvinyl choloride, or UPVC, is a rigid and chemically resistant plastic used often in window and door frames.
Clutch size: 35-50 eggs. In April or May, the female crocodile will build a nest of loose dirt in a mound by the water's edge and lay her eggs. She buries the eggs and fiercely guards her nest. When the eggs hatch in July or early August, the female helps carry her young to the water.
Breeding. Oviparous. Main Characteristics The Saltwater Crocodile is the largest living reptile. They have a body length between 5 and 7 m (16 - 23 ft) and they weigh between 400 and 700 Kgs (882 - 1,543 lbs), with males being much larger than females. They are grey or brown in colour and they have a broad, heavy set body with a large head.