Chapter Notes.

1.-In this Chapter the expression " cast iron " applies to products obtained by casting in which iron predominates by weight over each of the other elements and which do not comply with the chemical composition of steel as defined in Note 1 (d) to CHAPTER72.

2.-In this Chapter the word " wire " means hot or cold-formed products of any cross-sectional shape of which no cross-sectional dimension exceeds 16 mm.

GENERAL

This Chapter covers a certain number of specific articles in headings 73.01 to 73.24 and in headings 73.25 and 73.26 a group of articles not specified or included in CHAPTER82 or 83 and not falling in other Chapters of the Nomenclature of iron (including cast iron as defined in Note 1 to this Chapter) or steel.

For the purposes of this Chapter the expressions " tubes and pipes " and " hollow profiles " have the following meanings hereby assigned to them :

(1) Tubes and pipes

Concentric hollow products of uniform cross-section with only one enclosed void along their whole length having their inner and outer surfaces of the same form. Steel tubes are mainly of circular oval rectangular (including square) cross-sections but in addition may include equilateral triangular and other regular convex polygonal cross-sections. Products of cross-section other than circular with rounded corners along their whole length and tubes with upset ends are also to be considered as tubes.

They may be polished coated bent (including coiled tubing) threaded and coupled or not drilled waisted expanded cone shaped or fitted with flanges collars or rings.

(2) Hollow profiles

Hollow products not conforming to the above definition and mainly those not having their inner and outer surfaces of the same form.

The General Explanatory Note to CHAPTER72 applies mutatis mutandis to this Chapter.

73.01 - SHEET PILING OF IRON OR STEEL WHETHER OR NOT DRILLED PUNCHED OR MADE FROM ASSEMBLED ELEMENTS; WELDED ANGLES SHAPES AND SECTIONS OF IRON OR STEEL.

73.02 - RAILWAY OR TRAMWAY TRACK CONSTRUCTION MATERIAL OF IRON OR STEEL THE FOLLOWING : RAILS CHECK-RAILS AND RACK RAILS SWITCH BLADES CROSSING FROGS POINT RODS AND OTHER CROSSING PIECES SLEEPERS (CROSS-TIES) FISH-PLATES CHAIRS CHAIR WEDGES SOLE PLATES (BASE PLATES) RAIL CLIPS BEDPLATES TIES AND OTHER MATERIAL SPECIALIZED FOR JOINTING OR FIXING RAILS.

73.03 - TUBES PIPES AND HOLLOW PROFILES OF CAST IRON.

73.04 - TUBES PIPES AND HOLLOW PROFILES SEAMLESS OF IRON (OTHER THAN CAST IRON) OR STEEL (+) .

73.05 - OTHER TUBES AND PIPES (FOR EXAMPLE WELDED RIVETED OR SIMILARLY CLOSED) HAVING CIRCULAR CROSS-SECTIONS THE EXTERNAL DIAMETER OF WHICH EXCEEDS 406.4 mm OF IRON OR STEEL (+) .

73.06 - OTHER TUBES PIPES AND HOLLOW PROFILES (FOR EXAMPLE OPEN SEAM OR WELDED RIVETED OR SIMILARLY CLOSED) OF IRON OR STEEL (+) .

73.07 - TUBE OR PIPE FITTINGS (FOR EXAMPLE COUPLINGS ELBOWS SLEEVES) OF IRON OR STEEL.

73.08 - STRUCTURES (EXCLUDING PREFABRICATED BUILDINGS OF HEADING No. 94.06) AND PARTS OF STRUCTURES (FOR EXAMPLE BRIDGES AND BRIDGE-SECTIONS LOCK-GATES TOWERS LATTICE MASTS ROOFS ROOFING FRAME-WORKS DOORS AND WINDOWS AND THEIR FRAMES AND THRESHOLDS FOR DOORS SHUTTERS BALUSTRADES PILLARS AND COLUMNS) OF IRON OR STEEL; PLATES RODS ANGLES SHAPES SECTIONS TUBES AND THE LIKE PREPARED FOR USE IN STRUCTURES OF IRON OR STEEL.

73.09 - RESERVOIRS TANKS VATS AND SIMILAR CONTAINERS FOR ANY MATERIAL (OTHER THAN COMPRESSED OR LIQUEFIED GAS) OF IRON OR STEEL OF A CAPACITY EXCEEDING 300 l WHETHER OR NOT LINED OR HEAT-INSULATED BUT NOT FITTED WITH MECHANICAL OR THERMAL EQUIPMENT.

73.10 - TANKS CASKS DRUMS CANS BOXES AND SIMILAR CONTAINERS FOR ANY MATERIAL (OTHER THAN COMPRESSED OR LIQUEFIED GAS) OF IRON OR STEEL OF A CAPACITY NOT EXCEEDING 300 l WHETHER OR NOT LINED OR HEAT-INSULATED BUT NOT FITTED WITH MECHANICAL OR THERMAL EQUIPMENT.

73.11 - CONTAINERS FOR COMPRESSED OR LIQUEFIED GAS OF IRON OR STEEL.

73.12 - STRANDED WIRE ROPES CABLES PLAITED BANDS SLINGS AND THE LIKE OF IRON OR STEEL NOT ELECTRICALLY INSULATED.

73.13 - BARBED WIRE OF IRON OR STEEL; TWISTED HOOP OR SINGLE FLAT WIRE BARBED OR NOT AND LOOSELY TWISTED DOUBLE WIRE OF A KIND USED FOR FENCING OF IRON OR STEEL.

73.14 - CLOTH (INCLUDING ENDLESS BANDS) GRILL NETTING AND FENCING OF IRON OR STEEL WIRE; EXPANDED METAL OF IRON OR STEEL (+) .

73.15 - CHAIN AND PARTS THEREOF OF IRON OR STEEL.

73.16 - ANCHORS GRAPNELS AND PARTS THEREOF OF IRON OR STEEL.

73.17 - NAILS TACKS DRAWING PINS CORRUGATED NAILS STAPLES (OTHER THAN THOSE OF HEADING No. 83.05) AND SIMILAR ARTICLES OF IRON OR STEEL WHETHER OR NOT WITH HEADS OF OTHER MATERIAL BUT EXCLUDING SUCH ARTICLES WITH HEADS OF COPPER.

73.18 - SCREWS BOLTS NUTS COACH SCREWS SCREW HOOKS RIVETS COTTERS COTTER-PINS WASHERS (INCLUDING SPRING WASHERS) AND SIMILAR ARTICLES OF IRON OR STEEL (+) .

73.19 - SEWING NEEDLES KNITTING NEEDLES BODKINS CROCHET HOOKS EMBROIDERY STILETTOS AND SIMILAR ARTICLES FOR USE IN THE HAND OF IRON OR STEEL; SAFETY PINS AND OTHER PINS OF IRON OR STEEL NOT ELSEWHERE SPECIFIED OR INCLUDED.

73.20 - SPRINGS AND LEAVES FOR SPRINGS OF IRON OR STEEL.

73.21 - STOVES RANGES GRATES COOKERS (INCLUDING THOSE WITH SUBSIDIARY BOILERS FOR CENTRAL HEATING) BARBECUES BRAZIERS GAS-RINGS PLATE WARMERS AND SIMILAR NON-ELECTRIC DOMESTIC APPLIANCES AND PARTS THEREOF OF IRON OR STEEL.

73.22 - RADIATORS FOR CENTRAL HEATING NOT ELECTRICALLY HEATED AND PARTS THEREOF OF IRON OR STEEL; AIR HEATERS AND HOT AIR DISTRIBUTORS (INCLUDING DISTRIBUTORS WHICH CAN ALSO DISTRIBUTE FRESH OR CONDITIONED AIR) NOT ELECTRICALLY HEATED INCORPORATING A MOTOR-DRIVEN FAN OR BLOWER AND PARTS THEREOF OF IRON OR STEEL.

73.23 - TABLE KITCHEN OR OTHER HOUSEHOLD ARTICLES AND PARTS THEREOF OF IRON OR STEEL; IRON OR STEEL WOOL; POT SCOURERS AND SCOURING OR POLISHING PADS GLOVES AND THE LIKE OF IRON OR STEEL.

73.24 - SANITARY WARE AND PARTS THEREOF OF IRON OR STEEL.

73.25 - OTHER CAST ARTICLES OF IRON OR STEEL.

73.26 - OTHER ARTICLES OF IRON OR STEEL (+) .