When the coil of steel in the warehouse ,the first thing was to check the steel coil is meeting the metal stamping ,metal deep drawing requirement.
Material tensile testing machine
The raw material not only need to go though chemical element test but also need to Mechanical performance tensile test to double check whether the raw material is meeting the engine oil pan or the metal stamping part drawing requirement
Decoiling for raw material
Engine oil pan ,transmission oil pan Raw material decoiling ,we got raw material from steel company by coil.so we need to decoiling the raw material by ourselves.