Questions 1- What do we mean by alloy (Alloy), and why do researchers and specialists resort to its manufacture? 2 - What are the advantages of models manufactured by the method of plumbing, explain it. 3- What are the defects of models manufactured by the method of plumbing, explain it. 4- What is an ingot, and when do we call it this term? 5- What are the characteristics of the mold that must be taken into consideration in order for the casting process to be successful. 6- Why do we resort to using ultrasound to clean manufactured models? 7- What are the reasons that make us resort to the plumbing method. 8- What are the desirable general characteristics that can be obtained in the samples prepared by the method of plumbing.

Questions 1- What do we mean by alloy (Alloy), and why do researchers and specialists resort to its manufacture? 2 - What are the advantages of models manufactured by the method of plumbing, explain it. 3- What are the defects of models manufactured by the method of plumbing, explain it. 4- What is an ingot, and when do we call it this term? 5- What are the characteristics of the mold that must be taken into consideration in order for the casting process to be successful. 6- Why do we resort to using ultrasound to clean manufactured models? 7- What are the reasons that make us resort to the plumbing method. 8- What are the desirable general characteristics that can be obtained in the samples prepared by the method of plumbing.