1.brand name: Xinxin 2 our products got the factory certificate of CCS,LR,DNV,RINA,GL,BV,NK,KR and ABS all in December 6th ,200 brand name: Xinxin technique :hot rolledlength:4-12mour factory have angel steel, square steel, channel steel,bulb flat steel,,unequel angel steel ,and so on. square steel billet