CHANGZHOU TONGHENG METAL&TUBES CO.,LTD is a professional manufacturer and leading supplier of higher quality carbon steel tubes,stainless steel tubes, precision steel tubes,alloy pipes.
Our factory covers 80000square meters with the permanent assets of USD8000000. Employing more than 300 workers, 40engineers.
TONGHENG holds ISO9001 Quality management system certification,special equipment manufacturing license,international attestation such as API 5L.
TONGHENG have a good relationship with local and oversea customer,we provide: Quality Products,Excellent Service and Competitive Price.