| 49129 | Axles, drive, with differential, for road motor vehicles (excl. motor cycles) or tractors | |
| 49129 | Axles, non-driving (front or rear), for road motor vehicles (excl. motor cycles) or tractors | |
| 49129 | Axles, rear, with differential, for road motor vehicles (excl. motor cycles) or tractors | |
| 49129 | Axles, steering-wheel, for road motor vehicles or tractors | |
| 49540 | Axles, straight or cranked, whether or not assembled, for railway or tramway locomotives or rolling-stock | |
| 01510 | Azalea bushes | |
| 35250 | Azaserine (INN), not put up as medicaments | |
| 34140 | Azelaic acid and its salts and esters | |
| 34280 | Azides, metal, inorganic (excl. precious metal azides) | |
| 34150 | Azides, of carboxylic acids | |
| 34250 | Azides, of precious metal | |
| 48314 | Azimuth circles | |
| 48211 | Azimuths, navigational | |
| 34150 | Azobenzene | |
| 34150 | Azo-compounds and their substitution derivatives | |
| 34150 | α-Azoisobutyronitrile | |
| 34150 | Azonaphthalenes | |
| 34150 | Azotoluenes | |
| 34150 | p-Azoxyanisole | |
| 34150 | Azoxybenzene | |
| 34150 | Azoxybenzoic acid | |
| 34150 | Azoxycinnamic acid | |
| 34150 | Azoxy-compounds | |
| 34150 | p-Azoxyphenetole | |
| 34150 | Azoxytoluene | |
| 34150 | Azoxytoluidine | |
| 34110 | Azulene | |
| 34240 | Azure copper, artificial | |
| 14210 | Azurite (copper ore) | |
| 16310 | Azurite malachite, precious, unworked or simply sawn or roughly shaped, whether or not graded, not strung, mounted or set | |
| 38220 | Azurite malachite, precious, worked other than simply sawn or roughly shaped, whether or not graded, not strung, mounted or set | |
| 16310 | Azurite, precious, unworked or simply sawn or roughly shaped, whether or not graded, not strung, mounted or set | |
| 38220 | Azurite, precious, worked other than simply sawn or roughly shaped, whether or not graded, not strung, mounted or set | |