extrusion
materjali (plast, metall, toiduained) vormimisprotsess, kus kuumutatud materjal surutakse läbi matriitsi ehk avause, luues pika ja ühtlase ristlõikega toote, process by which lengths of constant cross section are formed by forcing a material, such as molten plastic, through a forming die, a process whereby heated or unheated plastic forced through a shaping orifice becomes one continuously formed piece