high quality, low carbon, single wall, welded steel tube,spooled tube, coiled tube, spooled tubing, coiled tubing, a606, a606 type 4, a606 t4, oil tubing, gas tubing, oil and gas tubing, oil & gas tubing,stainless steel,stainless steel tube, refrigeration serpentines, and refrigeration condensers. serving the appliance, transportation, heating element and hvac industries.