Ngokwemowudi yentshukumo ye-forging die oyithandayo, i-flange ye-welding flange inokohlulwa ibe yi-swing rolling, i-swing rotary forging, i-roll forging, i-wedge rolling, i-ring rolling, i-cross rolling, njl njl. ijingi yokujikeleza kunye nokuqengqeleka kweringi...
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