DIMLWD system variable
Function Description:
The DIMLWD system variable is used to specify the lineweight of dimension line.
Type : Enum 
Saved in : Drawing 
Initial value : -2
Range : 0,5,9,13,15,18,20,25,30,35,40,50,53,60,70,80,90,100,106,120,140,158,200,211
System Variable Value:
-3 : default(the default value is controlled by LWDEAULT system variable)
-2 : byblock 
-1 : bylayer