Marine Ruler Parallel Ruler Nautical Charts Parallel Ruler Mapping Points to h for Sale

Marine Ruler Parallel Ruler Nautical Charts Parallel Ruler Mapping Points to h For Sale

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Marine Ruler Parallel Ruler Nautical Charts Parallel Ruler Mapping Points to h:
$17.95

Marine Ruler Parallel Ruler Nautical Charts Parallel Ruler Mapping Points to The main role: Before Chartwork for ding lines bea line or course, the degree or amount of bea line degree course line.
Two hands each holding a ruler of David, alternately moved in parallel.
Usage: When the move operation, the appropriate force to suppress static hand -foot, one hand pushing moving feet, two feet alternately moved in parallel until the required position. Alternately moving, to prevent the static foot displacement.
colour:Transparent color
Material:plastic
size:450mm
Package Contents:
1*Chart parallel ruler