B21K   1/00  \	0	0	4E087	B21K   1/00	76	Ǥ¤	Making machine elements
B21K   1/02  \	1	1	4E087	B21K   1/02	167	塤롤ޤϥ顼㡥٥󥰤ΤΤ	balls, rolls, or rollers, e.g. for bearings
B21K   1/04  \	1	1	4E087	B21K   1/04	484	ܡ졼	ball-races
B21K   1/05  \	1	1	4E087	B21K   1/05	261	ݻΣ	cages for bearings [2]
B21K   1/06  \	1	1	4E087	B21K   1/06	295	ޤϥե	axles or shafts
B21K   1/08  \	2	2	4E087	B21K   1/08	497	󥯥ե	crankshafts
B21K   1/10  \	2	2	4E087	B21K   1/10	97	Τ	of cylindrical form
B21K   1/12  \	2	2	4E087	B21K   1/12	313	̤̤ʷ򤷤	of specially-shaped cross-section
B21K   1/14  \	1	1	4E087	B21K   1/14	22	ն	fittings
B21K   1/14  A	1	0	4E087	B21K   1/14	460	˥Сݥ른襤	Universal joints
B21K   1/14  Z	1	0	4E087	B21K   1/14	460	¾	Others
B21K   1/16  \	2	2	4E087	B21K   1/16	208	ѥפޤϥۡѼ	parts of pipe or hose couplings
B21K   1/18  \	1	1	4E087	B21K   1/18	14	ԥȥޤϥץ󥸥㡼	pistons or plungers
B21K   1/18  A	1	0	4E087	B21K   1/18	41	ԥȥ	Piston rings
B21K   1/18  Z	1	0	4E087	B21K   1/18	180	¾Τ	Others
B21K   1/20  \	1	1	4E087	B21K   1/20	159		valve parts
B21K   1/22  \	2	2	4E087	B21K   1/22	161	ݥڥåۡ㡥ǳ	poppet valves, e.g. for internal-combustion engines
B21K   1/24  \	2	2	4E087	B21K   1/24	84	Ρۺ	valve bodies; valve seats
B21K   1/26  \	1	1	4E087	B21K   1/26	108	ϥ󥰤ޤϻٻʡ㡥ϥ󥰡󥸥ն	housings or supporting parts, e.g. axle housings, engine mountings
B21K   1/28  \	1	1	4E087	B21K   1/28	76	ءǥ	wheels; discs
B21K   1/30  \	2	2	4E087	B21K   1/30	47	֤Ĥ	with gear-teeth
B21K   1/30  A	2	0	4E087	B21K   1/30	411	ʿ֡󥰻̲֡С̡	Spur gears, ring gears (extruding, thrusting through)
B21K   1/30  B	2	0	4E087	B21K   1/30	192	ʿ֡󥰻̳֡ȷ¡̷¡	Spur gears, ring gears (expanding diameter, shrinking diameter)
B21K   1/30  C	2	0	4E087	B21K   1/30	158		Bevel gears
B21K   1/30  D	2	0	4E087	B21K   1/30	253	إꥫ	Helical gears
B21K   1/30  Z	2	0	4E087	B21K   1/30	486	¾Τ	Others
B21K   1/32  \	2	2	4E087	B21K   1/32	7	ǥ㡥ǥ	discs, e.g. disc wheels
B21K   1/32  A	2	0	4E087	B21K   1/32	185	ǥۥݥ	Disc wheels
B21K   1/32  Z	2	0	4E087	B21K   1/32	106	¾Τ	Others
B21K   1/34  \	2	2	4E087	B21K   1/34	19	ݡ	wheels with spokes
B21K   1/36  \	2	2	4E087	B21K   1/36	25	Ĥ	with blades
B21K   1/38  \	2	2	4E087	B21K   1/38	68	ࡨ	rims; tyres
B21K   1/40  \	2	2	4E087	B21K   1/40	91	ϥ	hubs
B21K   1/42  \	2	2	4E087	B21K   1/42	93	ס꡼㡥֥ס꡼	pulleys, e.g. cable pulleys
B21K   1/44  \	1	1	4E087	B21K   1/44	257	ܥȡåɡޤϤहΡʥͥη£ˣեܥȤ¤£ˣ	bolts, studs, or the like (making screw-thread B21K 1/56; making U-bolts B21K 1/74)
B21K   1/46  \	2	2	4E087	B21K   1/46	15	ƬĤ	with heads
B21K   1/46  A	2	0	4E087	B21K   1/46	22	ĥɡ٥	Stud dowels
B21K   1/46  B	2	0	4E087	B21K   1/46	45	ܹܥ	Bolts connected by welding
B21K   1/46  C	2	0	4E087	B21K   1/46	4	ĳܥ	Wing bolts
B21K   1/46  D	2	0	4E087	B21K   1/46	28	ɥ륹	Drill screws
B21K   1/46  E	2	0	4E087	B21K   1/46	83	üܥ	Special bolts
B21K   1/46  Z	2	0	4E087	B21K   1/46	242	¾Τ	Others
B21K   1/48  \	3	3	4E087	B21K   1/48	4	ϥޤäù㡥ƬΤμǷ	Machines working with hammers, e.g. beating in a radial direction, for forming heads
B21K   1/48  A	3	0	4E087	B21K   1/48	20	ϻѷ	Hexagonal type
B21K   1/48  B	3	1	4E087	B21K   1/48	56	ܡݡĥƬ	Socket heads with plus- or minus-grooves
B21K   1/48  C	3	0	4E087	B21K   1/48	76	إĥǷⷿ	Hammering header type
B21K   1/48  D	3	0	4E087	B21K   1/48	16	ưۥݼإĥ	Movable die-holder type headers
B21K   1/48  G	3	1	4E087	B21K   1/48	31	岼ưإĥ	vertically-moving headers
B21K   1/48  H	3	1	4E087	B21K   1/48	36	ž󿶼إĥ	rotating-type, oscillating-type headers
B21K   1/48  E	3	0	4E087	B21K   1/48	7		Lubrication
B21K   1/48  J	3	0	4E087	B21K   1/48	29	ѥ»	Detection of broken punches
B21K   1/48  K	3	0	4E087	B21K   1/48	8	饤	Slide
B21K   1/48  L	3	0	4E087	B21K   1/48	14	ư	Drive
B21K   1/48  Z	3	0	4E087	B21K   1/48	78	¾Τ	Others
B21K   1/50  \	3	3	4E087	B21K   1/50	72	ƬΥȥߥ󥰤ޤϤǡ㡥ˤž夲	Trimming or shearing formed heads, e.g. working with dies
B21K   1/52  \	2	2	4E087	B21K   1/52	32	ξüù㡥ξ¦ƬͭΡƬη£ˣ	double-ended, e.g. with heads on both ends (forming heads B21K 1/46)
B21K   1/54  \	2	2	4E087	B21K   1/54	37	¤ޤϥΥåΤ	with grooves or notches
B21K   1/56  \	1	1	4E087	B21K   1/56	148	ͥǡΣ	screw-threaded elements [2]
B21K   1/58  \	1	1	4E087	B21K   1/58	53	٥å	rivets
B21K   1/60  \	2	2	4E087	B21K   1/60	40	ޤȾ٥å	hollow or semi-hollow rivets
B21K   1/62  \	2	2	4E087	B21K   1/62	119	̤ʥ٥åȡ㡥ŵĤ	special rivets, e.g. with electrical contacts
B21K   1/64  \	1	1	4E087	B21K   1/64	94	ʥåȡʥͥη£ˣ	nuts (making screw-thread B21K 1/56)
B21K   1/66  \	2	2	4E087	B21K   1/66	39	ӾफΤ	from strip bars
B21K   1/68  \	2	2	4E087	B21K   1/68	3	ޤϳΤ	from round or profiled bars
B21K   1/68  A	2	0	4E087	B21K   1/68	81	ʥĥȥեݥ	Nut formers
B21K   1/68  B	2	0	4E087	B21K   1/68	69	¤ˡ	Heading
B21K   1/68  Z	2	0	4E087	B21K   1/68	16	¾Τ	Others
B21K   1/70  \	2	2	4E087	B21K   1/70	4	üΤΡ㡥ɤߥʥåȡĳʥå	of special shape, e.g. self-locking nuts, wing nuts
B21K   1/70  A	2	0	4E087	B21K   1/70	38	󹦥ʥĥ	Perforated nuts
B21K   1/70  B	2	0	4E087	B21K   1/70	35	ޥʥĥ	box nuts
B21K   1/70  C	2	0	4E087	B21K   1/70	10	ĳʥĥ	Wing nuts
B21K   1/70  D	2	0	4E087	B21K   1/70	43	ߥʥĥ	Self-locking  nuts
B21K   1/70  E	2	0	4E087	B21K   1/70	27	ܥʥĥ	Welded nuts
B21K   1/70  Z	2	0	4E087	B21K   1/70	67	¾Τ	Others
B21K   1/72  \	1	1	4E087	B21K   1/72	15	եå㡥졼ѥեåƻѸţţ¤̣£ǡ	hooks, e.g. crane hooks, railway track spikes (making nails in general B21G)
B21K   1/74  \	1	1	4E087	B21K   1/74	66	եʤޤϣʾΥäʡ㡥եܥȡ󥫡	forked members or members with two or more limbs, e.g. U-bolts, anchors
B21K   1/76  \	1	1	4E087	B21K   1/76	9	Υ롼פΰĤ󤵤ʤ	elements not mentioned in one of the preceding groups
B21K   1/76  A	1	0	4E087	B21K   1/76	281	ĥ	Racks
B21K   1/76  B	1	0	4E087	B21K   1/76	56	ĥ	Washers
B21K   1/76  C	1	0	4E087	B21K   1/76	18		Pushbars
B21K   1/76  Z	1	0	4E087	B21K   1/76	179	¾Τ	Others
B21K   3/00  \	0	0	4E087	B21K   3/00	91	Υ֥롼פޤʤ󥸥ޤϤ뵡ʤ¤ץڥޤϤहΤ¤	Making engine or like machine parts not covered by B21K 1/00; Making propellers or the like
B21K   3/02  \	1	1	4E087	B21K   3/02	12	إå	cylinder heads
B21K   3/04  \	1	1	4E087	B21K   3/04	213	㡤㡥ӥѡΤĤΥåץå	blades, e.g. for turbines; Upsetting of blade roots
B21K   5/00  \	0	0	4E087	B21K   5/00	78	ޤϹʤ¤㡥ץ饤䡼	Making tools or tool parts, e.g. pliers
B21K   5/02  \	1	1	4E087	B21K   5/02	29	ɥޤϤ¾򤢤ޤϻž夲빩	drilling-tools or other tools for making or working on holes
B21K   5/04  \	2	2	4E087	B21K   5/04	41	ͤ칩㡥ɥ롤꡼	twisting-tools, e.g. drills, reamers
B21K   5/06  \	2	2	4E087	B21K   5/06	4	ɥå󥰡㡥åɥθ	Dressing, e.g. sharpening rock drills
B21K   5/08  \	2	2	4E087	B21K   5/08	2	޹ѹ	drifting tools
B21K   5/10  \	2	2	4E087	B21K   5/10	8	ɥӥåȥ󥯤	Forming drill-bit shanks
B21K   5/12  \	1	1	4E087	B21K   5/12	15	¾ǹʲѿʪٹʣ£ˣ	other cutting tools (cutlery wares B21K 11/00)
B21K   5/14  \	1	1	4E087	B21K   5/14	21	ϥޡ	hand hammers
B21K   5/16  \	1	1	4E087	B21K   5/16	10	ʥåȤޤ魯ι	tools for turning nuts
B21K   5/18  \	1	1	4E087	B21K   5/18	1	ϥɥȤ	handles or parts therefor
B21K   5/20  \	1	1	4E087	B21K   5/20	8	ޤ̤ͭλžù	Making working faces of dies, either recessed or outstanding
B21K   7/00  \	0	0	4E087	B21K   7/00	16	Ŵƻ°ʤ¤ξʤ¤	Making railway appurtenances; Making vehicle parts
B21K   7/02  \	1	1	4E087	B21K   7/02	10	ƻΤʡʸţ£ˣ	parts for permanent way (spikes B21K 1/72)
B21K   7/04  \	2	2	4E087	B21K   7/04	3	žƤĴü	switch tongues
B21K   7/06  \	2	2	4E087	B21K   7/06	1	꡼ѡ	sleepers
B21K   7/08  \	2	2	4E087	B21K   7/08	1	졼Υ١ץ졼ȡ㡥	base plates for rails, e.g. chairs
B21K   7/10  \	2	2	4E087	B21K   7/10	2	졼른祤	rail joints
B21K   7/12  \	1	1	4E087	B21K   7/12	40	ؼ֤ޤϼξΤʡ㡥ե졼ࡤե졼	parts for locomotives or vehicles, e.g. frames, underframes
B21K   7/14  \	2	2	4E087	B21K   7/14	9	֥졼Ѻޤϥ֥졼ʡΣ	brake rigging or brake parts [2]
B21K   9/00  \	0	0	4E087	B21K   9/00	2	Ŵƻ°ʡ㡥졼롤ν	Reconditioning railroad accessories, e.g. rails
B21K  11/00  \	0	0	4E087	B21K  11/00	16	ѿʪٹʤ¤ޤϤह	Making cutlery wares; Making garden tools or the like
B21K  11/02  \	1	1	4E087	B21K  11/02	30	ʥ	knives
B21K  11/04  \	1	1	4E087	B21K  11/04	8	ס󡨥ơ֥ե	spoons; table forks
B21K  11/06  \	1	1	4E087	B21K  11/06	6	Ϥ	scissors
B21K  11/08  \	1	1	4E087	B21K  11/08	6	ޡ𤫤꤬	sickles; scythes
B21K  11/10  \	1	1	4E087	B21K  11/10	4	ΡĤϤ	axes; picks
B21K  11/12  \	1	1	4E087	B21K  11/12	1	Ƨߤ٥	spades; shovels
B21K  11/14  \	1	1	4E087	B21K  11/14	1	ޤǡǥե	rakes; garden forks
B21K  13/00  \	0	0	4E087	B21K  13/00	19	ʤ¤㡥Ȣμ	Making locksmiths' goods, e.g. handles for cases
B21K  13/02  \	1	1	4E087	B21K  13/02	13	礦Ĥ	hinges
B21K  15/00  \	0	0	4E087	B21K  15/00	1	ʤ¤	Making blacksmiths' goods
B21K  15/02  \	1	1	4E087	B21K  15/02	27	°	horse-shoes; accessories therefor
B21K  15/04  \	2	2	4E087	B21K  15/04	2	ŴΤ٤ߤ᤯	caulks
B21K  15/06  \	1	1	4E087	B21K  15/06	1	ϤʪΤζ°°ʡ㡥	metal attachments for footwear, e.g. wear-resisting plates
B21K  17/00  \	0	0	4E087	B21K  17/00	35	ݡʪʡ㡥ȡ¤	Making sport articles, e.g. skates
B21K  19/00  \	0	0	4E087	B21K  19/00	10	ʪʤ¤	Making articles for agricultural machinery
B21K  19/02  \	1	1	4E087	B21K  19/02	1	ġ٤	plough blades; ploughshares
B21K  21/00  \	0	0	4E087	B21K  21/00	243	롼ף£ˣ£ˣñΥ֥롼פޤʤʪʤ¤ܼŪĺޤ϶Ѱδɤ¤£ġ㡥£ģ£ģ	Making hollow articles not covered by any single one of groups B21K 1/00-B21K 19/00 (essentially from sheet-metal or uniform thin-walled tubes B21D, e.g. B21D 41/00, B21D 51/00)
B21K  21/02  \	1	1	4E087	B21K  21/02	76	ʪʤ¤뤿ȾùʤȤƤα׾ޤ˹Ǻ¤㡥ʤޤϲФѤǺ	Producing blanks in the shape of discs or cups as semi-finished articles for making hollow articles, e.g. to be deep-drawn or extruded
B21K  21/04  \	1	1	4E087	B21K  21/04	135	ʪʤη㡥	Shaping thin-walled hollow articles, e.g. cartridges
B21K  21/06  \	1	1	4E087	B21K  21/06	8	ʪʤη㡥ƴ	Shaping thick-walled hollow articles, e.g. projectiles
B21K  21/06  A	1	0	4E087	B21K  21/06	214	緿ƴ¥	Large vessels, rings of large diameter
B21K  21/06  B	1	0	4E087	B21K  21/06	100	¥	Rings of small diameter
B21K  21/06  Z	1	0	4E087	B21K  21/06	125	¾Τ	Others
B21K  21/08  \	1	1	4E087	B21K  21/08	362	˰ۤʤäѤäʪʤη㡥Υ롤ѡץ饰	Shaping hollow articles with different cross-section in longitudinal direction, e.g. nozzles, spark-plugs
B21K  21/10  \	2	2	4E087	B21K  21/10	25	߿ޤϥ٥ʪʡ㡥󥷥졼å	cone-shaped or bell-shaped articles, e.g. insulator caps
B21K  21/12  \	1	1	4E087	B21K  21/12	183	ʪʤü	Shaping end portions of hollow articles
B21K  21/14  \	2	2	4E087	B21K  21/14	59	̩Ĥޤϼ¼Ū̩Ĥ줿üĤΡ㡥貤	closed or substantially-closed ends, e.g. cartridge bottoms
B21K  21/16  \	1	1	4E087	B21K  21/16	148	̤ηˤĤƤʪΤβ¤üβ¤£ˣ	Remodelling hollow bodies with respect to the shape of the cross-section (remodelling end portions only B21K 21/12)
B21K  23/00  \	0	0	4E087	B21K  23/00	273	¾ʪ¤	Making other articles
B21K  23/02  \	1	1	4E087	B21K  23/02	22	̵µƻʡ㡥ƻɡĺफ¤£ġ	members of endless tracks, e.g. track guides, shoes (making from sheet-metal B21D)
B21K  23/04  \	1	1	4E087	B21K  23/04	236	եդʡʣ£ˣͥ表եմɣ£ġ	flanged articles (B21K 1/28 takes precedence; flanging tubes B21D)
B21K  25/00  \	0	0	4E087	B21K  25/00	35	Ūࡤ㡥ӥ֤ȥեȡΤ뤹٤ߤţ뤿ˡġιǤȼޤȼ鷺ˤ礹뤳ȡʤޤФޤϥץ쥹Фˤ£У£У	Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components (uniting by interference- or press-fitting B23P 11/02, B23P 19/02)
B21K  25/00  A	0	0	4E087	B21K  25/00	8	ѥ	Spikes
B21K  25/00  B	0	0	4E087	B21K  25/00	7	üͥ	Special screws
B21K  25/00  C	0	0	4E087	B21K  25/00	5	ĥܥ	Strap bolts
B21K  25/00  D	0	0	4E087	B21K  25/00	22	եͥ	Screws with washers
B21K  25/00  E	0	0	4E087	B21K  25/00	8	ĳܥ	Wing bolts
B21K  25/00  F	0	0	4E087	B21K  25/00	25	ʥĥ	Nuts
B21K  25/00  G	0	0	4E087	B21K  25/00	19	եѥ	Golf spikes
B21K  25/00  Z	0	0	4E087	B21K  25/00	581	¾Τ	Others
B21K  27/00  \	0	0	4E087	B21K  27/00	15	֡㡥ߡФ֡ˡ	Handling devices, e.g. for feeding, aligning, discharging; Cutting-off means; Arrangement thereof
B21K  27/00  A	0	0	4E087	B21K  27/00	141	Сɽ	Detecting, indicating devices
B21K  27/00  B	0	0	4E087	B21K  27/00	269	ӥĥȤ	Devices for handling billets
B21K  27/00  C	0	0	4E087	B21K  27/00	104	Ϣ³Τ	Devices for handling continuous bodies
B21K  27/00  D	0	0	4E087	B21K  27/00	392	ȥ󥹥եݥץ쥹	Devices for handling transfer presses
B21K  27/00  E	0	1	4E087	B21K  27/00	71	ʥĥȥեݥޡ	for nut formers
B21K  27/00  F	0	1	4E087	B21K  27/00	141	ܥȥեݥޡ	for bolt formers
B21K  27/00  Z	0	0	4E087	B21K  27/00	221	¾Τ	Others
B21K  27/02  \	1	1	4E087	B21K  27/02	78	ȥåפζ	Feeding devices for rods, wire, or strips
B21K  27/04  \	2	2	4E087	B21K  27/04	74	Ϣ³Ȥ	allowing successive working steps
B21K  27/06  \	1	1	4E087	B21K  27/06	204	ˡ	Cutting-off means; Arrangement thereof
B21K  29/00  \	0	0	4E087	B21K  29/00	160	βǮޤѤΤ֡¤ޤϥץ쥹Ѷ°ǺѰդ뤿֣£ʣǮְ̤Ŭڤʥ֥饹㡥ȣ¡򻲾ȡ	Arrangements for heating or cooling during processing (for preparing metal stock to be forged or pressed B21J 1/06; heating equipment in general, <u>see</u> the appropriate subclasses, e.g. H05B)
B21K  31/00  \	0	0	4E087	B21K  31/00	35	񥭥䡼ΰĴ	Control devices specially adapted for positioning tool carriers
