Single and double sheet pilings have keying grooves on their edges. These interlocking grooves must not sustain damage.
"Keying grooves locally bent in (give number of positions)."
If uncoated, a normal rust clause will apply. If coated for protection, the following will apply if the coat is defective:
"Rust stained/rusty, where protective coating scratched, scored, gouged or chafed away.