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Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Disk
none
Shenyang Gong Si He DALI Metal Factory
China
Steel
1950
Dia = 9.2 cm
Metalworking
Notes:
"1) Calculating steel & cast iron metals for various shapes 2) Angle, flat, square, round, tubing, hexagonal, billet "
Image 1
Image 2