
LEATHER - RAW CATTLE HIDES AND CALF SKINS - PART 3: GUIDELINES FOR GRADING ON THE BASIS OF DEFECTS
出版:British Standards Institution

專家解讀視頻
LEATHER - RAW CATTLE HIDES AND CALF SKINS - PART 3: GUIDELINES FOR GRADING ON THE BASIS OF DEFECTS
出版:British Standards Institution
專家解讀視頻