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Ụlọ > Ngwaahịa > Efere ígwè > Hight Ike Low Alloy Steel
Q420D efere ígwè
Q420D efere ígwè
Q420D efere ígwè
Q420D efere ígwè

Q420D efere ígwè

GB / T1591 Q420 nwere ise dị iche iche ígwè akara ule dị ka Q420A,Q420B,Q420C,Q420D na Q420E.Structural ígwè Q420D ga-mere impacting ule na obere okpomọkụ mwepu 20 ogo centigrade.Normalised okpomọkụ ọgwụgwọ aro ka a ga-mere maka ala alloy ígwè efere. Q420D na oke ọkpụrụkpụ.
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