
PART 01

PART 02
PART 03
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First, look. First-layer leather has irregular patterns and pores; second-layer leather has uniform patterns, like printing. -
Second, press. First-layer leather has natural radial lines and rebounds quickly; second-layer leather is hard and rebounds slowly. -
Third, smell. First-layer leather has a faint leather fragrance; second-layer leather has a gluey or plastic smell. 

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