Custom Agriculture Brass Button Hammer Drill Bit Qingdao Xinghe Machinery Co., Ltd. Casting Method:pressure CrystallizationProcess:Lost Wax CastingMolding Technics:Gravity CastingApplication:Machinery PartsMaterial:Stainless SteelSurface Preparation:Polishing Base Info Model NO.:drill bitSurface Roughness:Ra3.2Machining Tolerance:+,-0.01mmStandard:AISICertification:CE, RoHS, ISO 9001:2000Product Name:Botton Bit Hammer Drill BitTechnology:Precision CastingTransport Package:Wooden PackageSpecification:customizedTrademark:XHOrigin:QingdaoProduction Capacity:1000000ton,Year Description Overview Product Description Our Factory & ProcessR&DWHY CHOOSE USSurface TreatmentCertificationsOur ClientsApplication Pre:ISO 9001 Aluminum Copper Iron Zinc Stainless Steel Die Sand Casting for Hardware Next:Custom Brass Steel Casting Parts for Button Bit Drill Bit