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生丝试验方法
Testing method for raw silk
价格:¥0.00
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丝织物试验方法和检验规则
Testing method and inspection regulations for silk fabrics
价格:¥0.00
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桑蚕干茧检验方法
Methods of mulberry silkworm dried cocoons
价格:¥0.00
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桑蚕捻线丝
Thrown silk
价格:¥0.00
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桑蚕干茧
Mulberry silkworm dried cocoons
价格:¥8.00
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