Machine Head Attribute: Forge Steel Original: Germany Technology Front cover, cylinder and piston use Chrome40, forging integrity, increase its fatigue resistance. Surface hardness is HRC26-30°, hardness of inside layer is HRC59-63°, Eht 2mm. 3945105508525939223-blid-1030551692225189393

โปรดเกล้าฯ สถาปนา สมเด็จฯ เจ้าฟ้ากรมหลวงราชสาริณีสิริพัชร มหาวัชรราชธิดา

 
   

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