tools and hardware 1,Materials: HSS M2, SKH 2 ... -shaped…MaterialHSS M-2, SKH-9, SKD11,ASP23,ASP30...Surface TreatmentTIN TICN TIALN CRN ..Length Tolarance+/-0.01Diameter Tolerance+/-0 ... (Mainland)Machine TypePunching Machine Please specify the details of tools and hardware components as following when you inquiry1,The ... ,for example:M2.0,D 14*25.4,The surface coating type ,for example:Tin,Ticn5,It is the ...