Permanent Steel Manufacturing Co.,Ltd

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2000                                       2003                                       2005                                      2008

Carbon steel pipe              Square tube                            Production base                  Stainless steel

plant was                            mill put                                   in Shandong                          mill was found

established                         into use


2012                                       2015                                       2017

Coating equipment           Pipe fittings                     Production base

introduction                        factory                                    in Tianjin


News Update :    Causes and Detection Methods of Common Failures of Seamless Steel Pipes...
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