... 303,304 ,304l,316,316l,317,309,310s and 400 series.2.Size: 5mm*5mm-260*260mm3. ... .Stianless steel square bar is widely applied for petroleum,chemical,mechanical and electrical,hardware and so on.standard AISI , JIS , ER ... , chains , kitchen and sanitary wares ,furniture handles , handrails , electroplating and electrolyzing pendants , foods, electron , petroleum , construction and decoration , etc. with ...