Hi…..friends here i will show how create a stock vector illustration 3d washbasin images.
In this tutorial you will learn how to create a washbasin quick and easy.
[1]-Create Chamfer box with the following size
Place the object like me 
[2]-Create box with the following size and and boolean the boolean the box like me 
[3]-Your object should like this 
[4]-Convert the chamfer box into the editable poly and select the polygons
Make the selection and deleted now 
[5]-Apply the shell modifier with the good following amount as shown below 
[6]-Create rectangle with the following size and apply the extrude modifier with the amount of 1.0 
[7]-Create two box with the following size and place like me 
[8]-Go to boolean and now boolean the object like me 
[9]-Create cylinder with the following size and now boolean it 
[10]-Create tube and place like me 
[11]-Your object should like me 
[12]-Make the materials like me 
[13]-Now you are done it enjoy the final output as shown below 