Major parts of the manufacturing process 3945105508525939223-blid-8002715984886882199

2 ตัวมา 1 ตัวบน 15 งวดติด @นู๋น้ำ บนตัวเดียว 4 งวด คนบ้านโคก 2 ตัวบนตรงๆ สัญจร 3 งวดติด 1_6_62

 
   

Working rollers: cast steel ingot (chemical composition analysis): check performance-forging roughcast — forging annealing-UT flaw — roughing (mechanical tests)-heat treatment (hardening and tempering) — UT flaw — semi finishing — finishing — MT

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