
LEATHER - RAW CATTLE HIDES AND CALF SKINS - PART 2: GUIDELINES FOR GRADING ON THE BASIS OF MASS
出版:British Standards Institution

专家解读视频
LEATHER - RAW CATTLE HIDES AND CALF SKINS - PART 2: GUIDELINES FOR GRADING ON THE BASIS OF MASS
出版:British Standards Institution
专家解读视频