Talk:646.1 Manholes
I was asked, "How do you know when to use a Type 2 vs. a Type 3 Manhole Frame & Cover". The standard drawing shows the weight difference for these but I can not find any other information on these.
I was asked, "How do you know when to use a Type 2 vs. a Type 3 Manhole Frame & Cover". The standard drawing shows the weight difference for these but I can not find any other information on these.