Doosan DX700LC Operation And Maintenance Manual page 190

Product Identification Number (P. I. N.)
Location
A P.I.N. number, is stamped on the upper frame, under the
boom foot (Figure 3). It is also stamped on the product
identification plate (Figure 4) on outside of the cabin on right.
NOTE:
Please make note of these numbers and their
locations. These will be required whenever warranty
or service work is requested. Keep this number on
file, incase the machine is stolen.
Inspection, Maintenance and Adjustment
4-2
Figure 3
Doosan Infracore Co., Ltd.
7-11, Hwasu-dong, Dong-gu,
Incheon, Korea
Figure 4
FG012987
OP001123