Sheheng Jaan Industries Corporation
ruler& square including stainless steel ruler, band tool, straight rulers, flexibles steel cork- ruler, stationery steel ruler, aluminum ruler, stainless steel protractor, carpenter- square steel ruler, black- carpenter's square, aluminum& steel square, divider and caliper, ratio- scale ruler, caliper, ratio- scale ruler, decoration ruler, to worship ruler, steel seal, ...
Others 
China