Guanyu Tube is specialized manufacturer of Stainless Steel Tubes for Heat Exchanger, ASTM A213 ASME SA213 TP304 TP304L TP304H TP316 TP316L TP316Ti TP317 TP317L TP317LMN TP321 TP321H TP347H TP309S TP310S TP310H TP904L N08904 254SMo S31254 Heat Exchanger Tubes. ASTM A789 ASME SA789 2205 S31803 S32205 S32750 S32304 S32760 S32101 Stainless Steel Heat Exchanger Tubes. Delivery condition in Bright Annealing or Annealing and Pickling.

Guanyu Tube has been assessed for approval of its production facility for Heat Exchanger Tubes. A quality control system established and operated by the company was audited by TUV, and found the company has the facilities and capabilities to fabricate the cold finished (Cold-drawing and Rolling) Stainless Steel Seamless Pipes (Tubes) complied with the requirement of the applicable ASME/ASTM material standard of ASME Boiler and Pressure Vessel Code Section II Part A.