塑料的统治者规定的，30厘米，这LF3059

math set/combined ruler set/math instrument/plastic ruler set/school set/stationery set/drawing set,30CM,LF3059 Feature1 set ruler set with 5 pcs plastic accessoriesAccessories1 pc 30cm plastic ruler1 pc plastic right angled isosceles triangle1 pc plastic right angled triangle1 pc plastic semicircular protractor1 pc plastic round protractorColortransparent,red,blue,purple,etc.Packing1 set/opp bag with paper card,24 sets/inner box,288 sets/ctnMeas(cm)51.5*39*28G.W/N.W(kg)18/17TODwithin 15 days after rec'd the depositLogoour design or your custom's design to be acceptable.CertificateCertificate of Quality Management System:ISO9001:2000Certificate of Environment Management System:ISO14004:2004Confors to ASTM-D4326