save multiple value on label in table format .net c#

Question

how to show label text in table format 

 

Label2.Text += "<table style='margin-top:10px;'><tr><td>Product Name:</td> <td>Quantity:</td><td></tr><tr><td>" + lbl_pro_nm.Text + "</td><td>" + int.Parse(drop_quantity.SelectedValue.ToString()) + "</td></tr></table>";

 

this is return table like: this is  repeat column

 

products name:       quantity

xyz                             1

 

 

products name:   quantity

xyer                       1

 

 

 

 

 

but i want

 

 product name   quantity

 xyz                         1

 xyer                        1

 ert                          1