CN code

Greenhouse gas

7301 – 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鐵或鋼板樁，無論是否鑽孔、沖孔或由組裝元件製成； 鐵或鋼的焊接角材、型材和型材

Carbon dioxide

7302 – 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 specialised for jointing or fixing rails鐵或鋼的鐵路或電車軌道建築材料，以下：鋼軌、護欄和齒條、道岔刀片、道岔轍叉、點桿和其他道岔件、軌枕（枕木）、魚尾板、椅子、椅子 楔子、底板（底板）、軌夾、底座、枕木和其他專門用於連接或固定鋼軌的材料

Carbon dioxide

7303 00 – Tubes, pipes and hollow profiles, of cast iron鑄鐵管、管道和空心型材

Carbon dioxide

7304 – Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel鐵（鑄鐵除外）或鋼製無縫管、管道和空心型材

Carbon dioxide

7305 – 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具有圓形橫截面、外徑超過 406.4 毫米的鐵或鋼製其他管子和管道（例如焊接、鉚接或類似封閉的）

Carbon dioxide

7306 – Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel鐵或鋼製的其他管材及空心型材（例如開縫或焊接、鉚接或類似封閉的）

Carbon dioxide

7307 – Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel鐵或鋼製管材或管道配件（例如，接頭、彎頭、套管）

Carbon dioxide

7308 – Structures (excluding prefabricated buildings of heading 9406 ) and parts of structures (for example, bridges and bridge-sections, lock- gates, towers, lattice masts, roofs, roofing frameworks, 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結構（不包括品目 9406 的預製建築）和結構部件（例如橋樑和橋段、閘門、塔、格子桅杆、屋頂、屋頂框架、門窗及其框架和門檻、百葉窗、 鐵或鋼製的欄杆、柱子和立柱）； 供鐵或鋼結構使用的板材、棒材、角材、型材、型材、管材等

Carbon dioxide

7309 00 – 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容量超過 300 升的鋼鐵製任何材料（壓縮或液化氣體除外）的儲罐、儲罐、大桶和類似容器，無論是否有襯里或隔熱，但未安裝機械或熱力設備

Carbon dioxide

7310 – 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罐、桶、圓桶、罐頭、箱子和類似容器，用於任何材料（壓縮或液化氣體除外），鐵或鋼製，容量不超過 300 升，無論是否有襯里或隔熱，但未安裝 使用機械或熱力設備

Carbon dioxide

7311 00 – Containers for compressed or liquefied gas, of iron or steel鐵或鋼製壓縮或液化氣體容器

Carbon dioxide

7318 – Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel鋼鐵製螺釘、螺栓、螺母、方頭螺釘、鉤形螺釘、鉚釘、開口銷、開口銷、墊圈（包括彈簧墊圈）及類似物品

Carbon dioxide

7326 – Other articles of iron or steel

Carbon dioxide

CN code

Greenhouse gas

7601 – Unwrought aluminium未鍛軋鋁

Carbon dioxide and perfluorocarbons

7603 – Aluminium powders and flakes鋁粉和鋁片

Carbon dioxide and perfluorocarbons

7604 – Aluminium bars, rods and profiles鋁棒、棒材和型材

Carbon dioxide and perfluorocarbons

7605 – Aluminium wire鋁線

Carbon dioxide and perfluorocarbons

7606 – Aluminium plates, sheets and strip, of a thickness exceeding 0,2 mm厚度超過 0.2 毫米的鋁板、片材和帶材

Carbon dioxide and perfluorocarbons

7607 – Aluminium foil (whether or not printed or backed with paper, paper-board, plastics or similar backing materials) of a thickness (excluding any backing) not exceeding 0,2 mm厚度（不包括任何背襯）不超過 0.2 毫米的鋁箔（無論是否印刷或背襯紙、紙板、塑料或類似背襯材料）

Carbon dioxide and perfluorocarbons

7608 – Aluminium tubes and pipes鋁管和管道

Carbon dioxide and perfluorocarbons

7609 00 00 – Aluminium tube or pipe fittings (for example, couplings, elbows, sleeves)鋁管或管道配件（例如，接頭、彎頭、套管）

Carbon dioxide and perfluorocarbons

7610 –Aluminium structures (excluding prefabricated buildings of heading 9406 ) and parts of structures (for example, bridges and bridge-sections, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, balustrades, pillars and columns); aluminium plates, rods, profiles, tubes and the like, prepared for use in structures鋁結構（不包括品目 9406 的預製建築）和結構部件（例如橋樑和橋段、塔、網格桅杆、屋頂、屋頂框架、門窗及其框架和門檻、欄杆、支柱和立柱） ）； 用於結構的鋁板、棒、型材、管材等

Carbon dioxide and perfluorocarbons

7611 00 00 – Aluminium reservoirs, tanks, vats and similar containers, for any material (other than compressed or liquefied gas), of a capacity exceeding 300 litres, whether or not lined or heat-insulated, but not fitted with mechanical or thermal equipment容量超過 300 升的鋁製儲罐、儲罐、大桶和類似容器，適用於任何材料（壓縮或液化氣體除外），無論是否有襯里或隔熱，但未配備機械或熱力設備

Carbon dioxide and perfluorocarbons

7612 – Aluminium casks, drums, cans, boxes and similar containers (including rigid or collapsible tubular containers), for any material (other than compressed or liquefied gas), of a capacity not exceeding 300 litres, whether or not lined or heat-insulated, but not fitted with mechanical or thermal equipment容量不超過 300 升的鋁桶、圓桶、罐頭、盒子和類似容器（包括剛性或可折疊管狀容器），用於任何材料（壓縮或液化氣體除外），容量不超過 300 升，無論是否有襯里或隔熱，但 未配備機械或熱力設備

Carbon dioxide and perfluorocarbons

7613 00 00 – Aluminium containers for compressed or liquefied gas用於壓縮或液化氣體的鋁製容器

Carbon dioxide and perfluorocarbons

7614 – Stranded wire, cables, plaited bands and the like, of aluminium, not electrically insulated鋁製絞合線、電纜、編織帶等，非電絕緣

Carbon dioxide and perfluorocarbons

7616 – Other articles of aluminium其他鋁製品

Carbon dioxide and perfluorocarbons

CN code

Greenhouse gas

2804 10 00 – Hydrogen氫

Carbon dioxide