precise barrel straightness 0 02mm per meter bimetallic screw and barrel

{"cid":"91222495","title":"Extended Service Life Bimetallic Screw and Barrel with Nitriding Depth 0.5-0.8mm and Precise Barrel Straightness 0.02mm per Meter","imgUrl":"https:\/\/img.chinax.com\/nimg\/4b\/86\/38dd8a14ab630c73b344f4f2fa0f-200x200-1.jpg","attrs":{"Price":"1 Pieces","Brand Name":"Jialong","Delivery Time":"1-35 Work Days","Packaging Details":"Woodern Package","Supply Ability":"300 Piece\/Pieces Per Month","Screw Straightness":"0.015mm\/m","Hardness":"HRC 58-62","Lifespan":"Extended Service Life Compared To Single Metal Screws","Nitrided Layer Depth":"0.5mm-0.8mm","Nitriding Depth":"0.5-0.8mm","Chrome Layer Thickness":"0.03mm-0.06mm","Barrel Diameter":"40-500mm","Lengthrange":"500mm To 3000mm"}}