Number of dog spikes normally used per rail seat on curved track is__________________?
(A) one on either side
(B) two outside and one inside
(C) one outside and two inside
(D) two outside and two inside
Number of dog spikes normally used per rail seat on curved track is__________________?
(A) one on either side
(B) two outside and one inside
(C) one outside and two inside
(D) two outside and two inside
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