... 16mm,which are extensively used for Car-making,Container Frame ,mechnical, furniture,machine manufacturing. we would appreiciate ... NAME OF PRODUCTSquare tube , Rectangular tube, GI square PipeSHS (Square Hollow Section) ,RHS( Rectangular Hollow Section)Pre- ... 0.7-13mmTORLERANCE:+/-0.03mm +/-0.02mmPRODUCTSHOWNAME OFPRODUCTGALVANIZED SQUARE & RECTANGULAR TUBES/HOLLOW SECTIONSIZE16*16-100*100mm20*40 ...