NINGBO ZHENG YU FASTENERS CO.,LTD
TEL:+86-574-26858923,26858918  E-mail:sales@allbolts.com

Testing Center

Impact Tester     Chemical Element Analyzer
               Impact Tester                                                 Chemical Element Analyzer
Chemical Composition Analyse     Salt Spary Tester (cass test)
                Chemical Composition                          AnalyseSalt Spary Tester (cass test)
Hardness Tester     Tensile Tester
                 Hardness Tester                                              Tensile Tester

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