ClassID:

38099

B21B2261/08 - CPC Classification

Classification description:

Product parameters; Transverse dimensions Diameter

Recent Application in this class:
#1
20220226870
2022-07-21

METHOD AND APPARATUS FOR DETERMINATION OF TWIST ANGLE DURING A ROLLING OPERATION

#2
20200009625
2020-01-09

Rolling mill for rolling concave, rod-shaped bodies

#3
20190010569
2019-01-10

Process of producing a duplex stainless steel tube

#4
20180154410
2018-06-07

Method for producing seamless metal tube

#5
20160376677
2016-12-29

Method for producing a tempered seamlessly hot-fabricated steel pipe

#6
20160082489
2016-03-24

Method for determining the stamping quality of profiled bar material

#7
20150306646
2015-10-29

Manufacturing method and manufacturing apparatus of seamless metal pipe

#8
20150121982
2015-05-07

Manufacturing method of seamless metal pipe, mandrel mill, and auxiliary tool

#9
20140146941
2014-05-29

Method and device for determining thickness of rolling stock

#10
20130263436
2013-10-10

Production method of seamless tube using round bar made of high Cr-high Ni alloy

#11
20130255342
2013-10-03

Method for producing seamless tube/pipe

#12
20110271731
2011-11-10

METHOD FOR PRODUCING SEAMLESS METALLIC TUBE BY COLD ROLLING

#13
20100107714
2010-05-06

Pusher device for piercing and rolling and method of manufacturing seamless pipe or tube using the same

#14
20100000281
2010-01-07

Method for manufacturing seamless steel pipe made of high Cr-high Ni alloy steel

#15
20090145193
2009-06-11

Method for producing ultra thin wall metallic tube by cold rolling method

#16
20090064748
2009-03-12

Process for manufacturing a seamless tube

#17
20080289388
2008-11-27

Piercing-rolling method and piercing-rolling apparatus for seamless tubes

#18
20070220941
2007-09-27

Wire-rolling stand and method of operating same

#19
20060150701
2006-07-13

Method of controlling the cross section of a wire rod strand emerging from a wire rod mill line