1. Khái niệm về gia công cơ khí

 !!!"#$%
&'()*+,-./
0(12131!)%45+3+6
(+2726*8+289(12
)2:(6*;2<
1+:='1>+,-(3
(>+,-21!!./?%8(':8
+7%
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2$?A'1+
BC7D(3>8+%
E8+%(F!:+%$
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G$2
'2+%A!1(12!1&!2
!1(/+%HI+J
KL:54MNO!2"2P22Q2
4+,A2(/!R
E;JS+TA8+%6(U
A18SA+A7RT(U
AS+%A+A%T(HV)
A8+%

Tai nạn và các nguyên nhân thường xẩy ra:
W
>45+)%M+
:N
XY7(M!U2XZ/!J2(/!
XY#(