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Excavator ịwụ ahụ na ịwụ eze ịgbado ọkụ na mmezi nkà usoro
The ịwụ ahụ ihe nke wY25 excavator bụ Q345, nke nwere ezi weldability. Ihe nha nha nke ịwụ bụ ZGMn13 (nchara manganese dị elu), nke bụ otu-phase austenite na oke okpomọkụ ma nwee ezigbo ike na akwa mkpuchi mkpuchi n'okpuru mmetụta mmetụta n'ihi na-arụ ọrụ ike nke elu la ...GỤKWUO