... 2.Grade:TP304,TP316L 3 Certificate: CE/PED,ABS, DNV ,GL rectangular stainless steel tube thickness ramge:1mm-50mmOutside range :1 ... %deposite before manufacture ,balance before shipmentCertificate: CE/PED, DNV, ABS,GL, KR,LR,RS,ISO9001,ISO4001,etc.deliver time: at least ... can produce as clients require orders, thanks your support . 201/301/304/316 rectangular stainless steel tube