... years manufacturer 3.SGS,Rohs certification 4.free sample screws and bolts Material:stainless steel,steelStandard:ISO,DIN,BS,JIN,ASTM ... ,black zinc,color zinc,blue zincPacking:poly bag,paper bag and carton ,kraft bag or according to the customers'requirementSize: Dia:M0 ... of very high qualityPackingAS you requiredDelivery10-15 daysPaymentTT 30% deposit and 70% cash before shipment or on the basis of L ...