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Certifications we have for steel pipe production

Taking ERW steel pipe for example, Threewaysteel pipe company has certificate: API 5L PSL1 / PSL2, API 5CT for customers. So does for seamless steel pipe, galvanized steel pipe, SSAW steel pipe too in Threewaysteel.


Today, we would have a detailed introduction for certifications we have for steel pipe production.

From the picture above, we can see that we have certification of CE, TUVRheinland, SGS, ISO9001, Certificate of Authority to use the Official API Monogram Li. No matter which kind of certificate you want for your customized steel pipe, you can negotiate with us. No matter which kind of type steel pipe you can, please let us know and we can give your serve all the time.