Base material: 38CrMoAIA, Special alloy is welded on the flight of screw , prolong life of screw. 3945105508525939223-blid-6897548910910442721

ชุดคู่บน60/อ.สิง งวดนี้ 16/08/62 แนวทางสลากกินแบ่งรัฐบาล

 
   

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