High accuracy cold rolled steel pipe Detail description of the cold rolled steel pipe as follows:Material: Q195.Q215.Q235Application: this quality standard ... for cold rooled steel tube core,aluminum foil, petro oil pipe, shock absorber, hydraulic pressure cylinder body...Specification and technical parameter ... mechanical property conform to: δ5≥7%αb500625Mpaαs450626 Mpa. Cold rolling steel pipe