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98年12月24日,由保定天鹅化纤集团有限公司研制的新产品“40D粘胶人造丝”和“连续纺粘胶长丝”通过了省级鉴定n与会专家认真听取了研制工作报
December 24, 1998, Baoding Swan Chemical Fiber Group Co., Ltd. developed new products “40D viscose rayon ” and “continuous spunbond filament ” passed the provincial identification n participating experts listened carefully to the development Work report