Write is Plastic and Fusion welding?

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Plastic Welding
In this type, the parts are to . In this stage, is applied to make a . It is also known as .

Fusion Welding
The metal parts are heated upto the . In this type, the is made at this stage and the parts are allowed to . On , the forms a . is applied in this method. Hence, it is also known as or . and fall in this category.