... 45*3.5mm, 108*4mm, 13.7*2.2mmHengli Petrochemical (Dalian) Co.,Ltd.PTA First-period ProjectASTM A312 TP304 Stainless Seamless Pipe: ... 53mm, 864*9.53mm 75MTXianglu Petrochemical Co.,LtdPTA Second-period ProjectASTM A312 TP304 Seamless Stainless Steel Tube: 406.4*26mm, 406. ... 42mm, 457*22mmHulunbeier New Gold Chemical Co.,Ltd.5080 ProjectASTM A312 TP304 Stainless Steel Seamless Tube: 219.1*8.18mm, 219.1 ...