I shale ruler 1.size:650,950,1250,1650,1850mm 2. ... quality:high 3.not easy to change shape 4.manufacture I shale ruler 1.size:650,950,1250,1650,1850mm2.material ... shape4.manufacture Anhua Glass Tools Limited a manufacturer involved in diamond tools for glass processing was found in 1990 and approved ... from customers all over the world.Our ruler series products: I shale ruler