38349 ⎘
Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes; Making tubes of special shape; Making tube fittings; Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
METHOD AND APPARATUS FOR MAKING FIN TUBE
#2Cylindrical tube formation
#3Fin-assembled tube manufacturing method and double tube manufacturing method
#4Method and apparatus for forming a helical type flight
#5Cylindrical tube formation
#6Cylindrical tube formation
#7Soil auger and method of manufacture
#8Flexible tube, manufacturing method and apparatus
#9METHOD FOR PRODUCING STEAM GENERATOR TUBES
#10Method and device for stretch-flow forming
#11HELICALLY WOUND FINNED TUBES FOR HEAT EXCHANGERS AND IMPROVED METHOD FOR SECURING FINS AT THE ENDS OF THE TUBES
#12Method of manufacture through the welding of finned tubes with cooled guide discs onto a tubular body set into rotational motion
#13HEAT TRANSFER TUBE
#14Method and blank for producing a screw-tube conveyor and screw-tube conveyor produced in this way
#15Enhanced heat transfer tube and manufacture method thereof
#16HEAT EXCHANGER
#17Method and apparatus for forming a finned heat exchanger tube that includes an internal fin structure that is a spring formed from a spiral wire wound around a mandrel
#18Frequency synthesizer
#19Variable fin density coil
#20High-performance and high-efficiency rolled fin tube and forming disk therefor
#21High-performance and high-efficiency rolled fin tube and forming disk therefor
#22Fin stock for a heat exchanger and a heat exchanger
#23Finned tube with vortex generators for a heat exchanger