U-shaped seamless steel tubes, bellows, retractable tubes and spiral tubes for heat exchanger bundle

Implementation standards:

GB/T9948-2013

GB/T150.2-2021

Q/TDGG0037-2003----------Enterprise standard

Uses: for heat exchangers, heat exchangers, evaporator pipes, etc., used in petrochemical industry.

The main production grades of steel pipes are as follows:

10#、10（HSC）、20#、20G、15CrMo、12Cr1MoVG、07Cr2AlMo、09CrMoAl、1Cr18Ni9Ti、0Cr18Ni9 Etc.