A total of 135 foreign and 74 Pakistani firms displayed their defence equipment and machinery in an international defence exhibition beginning in the country's port city of Karachi on November 7, 2012. (Photo Source: cri.cn)

A total of 135 foreign and 74 Pakistani firms displayed their defence equipment and machinery in an international defence exhibition beginning in the country's port city of Karachi on November 7, 2012. (Photo Source: cri.cn)

A total of 135 foreign and 74 Pakistani firms displayed their defence equipment and machinery in an international defence exhibition beginning in the country's port city of Karachi on November 7, 2012. (Photo Source: cri.cn)

A total of 135 foreign and 74 Pakistani firms displayed their defence equipment and machinery in an international defence exhibition beginning in the country's port city of Karachi on November 7, 2012.(Photo Source: cri.cn)

A total of 135 foreign and 74 Pakistani firms displayed their defence equipment and machinery in an international defence exhibition beginning in the country's port city of Karachi on November 7, 2012.(Photo Source: cri.cn)

A total of 135 foreign and 74 Pakistani firms displayed their defence equipment and machinery in an international defence exhibition beginning in the country's port city of Karachi on November 7, 2012.?(Photo Source: cri.cn)

A total of 135 foreign and 74 Pakistani firms displayed their defence equipment and machinery in an international defence exhibition beginning in the country's port city of Karachi on November 7, 2012.(Photo Source: cri.cn)