Business License

China's top 500 manufacturing enterprises
China's top 500 manufacturing enterprises
China's top 500 manufacturing enterprises
China's top 500 manufacturing enterprises

Professional Certification · Quality AssuranceProduct Certificates

Yuantai Derun square steel pipes comply with international standards, holding ISO 9001, CE, ASTM certifications. SGS tested and RoHS compliant, we guarantee top-tier quality. Choose Yuantai Derun for trusted reliability!

ABS Certificate

API Spec. 5L Certificate

BC1

BV Certification by French Bureau of Shipping

DNV Classification Society Certification

EN10210

EN10219

Green Product Certificate

ISO9001

ISO45001

ISO140001

JIS certificate

Tangshan ISO9001

Tangshan ISO14001

Tangshan ISO45001

010203040506070809101112131415