The minimum thickness of a steel plate, which is directly exposed to weather and is not accessible for cleaning and repainting, should be___________________?
(A) 4.5 mm
(B) 6 mm
(C) 8 mm
(D) 10 mm
Share this... |
![]() Facebook
|
![]() Twitter
|
![]() Linkedin
|
![]() Whatsapp
|
Your email address will not be published. Required fields are marked *