drawing or centerless ground diameters : from 2mm to 120mm diameter tolerance : iso h7,h8, h9 ,h10 delivery lengths: 1000-6000mm or as per customer’s requset straightness:0.5mm/m quality : high precision sizes ; optimal machinability on annealead status; defects and decaburisation free ; excelent finishing and straightness. heat treatment: quenched in 1030-1050℃, tempered more than twice in 580-620℃ protection: slight rust proof oil packaging: max 1000kgs with correct packaging to avoid contacts with water and humidity, bars ...