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Misschien dat dat meer iets is van de laatste 10 jaar?
The 1970sContainer sizes: 20', 24' (Matson), 35' (Sea-Land), 40'. High-cube (9'-6" tall) containers introduced; most companies are now standardized to the 20'/40' ISO container sizes. Notable exceptions are Matson and Sea-Land, who offer 40' ISO boxes in addition to their non-standard sizes