Oui merci Nop
Sinon l'avis de Keith
They are after-market copies of the origianl MG Metro type piston. Made by Federal Mogul under initially using the AE Heplite brand name. They are now sold under the name of Nural. Fed Mogul bought up AE Hepolite and moved production to South Africa some years back now. 21253 is the part number most folks recogise so easy to get rings for if needed. A +0.060" the capacity with a standard stroke 1275 crankshaft is 1330cc.
Cheers, Keith.