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尼龙加纤PA66
强尼PA66CF15PA66CF30PA66CF20
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gf15pa66cf15ppa尼龙pa66cf30增强
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耐腐蚀模量抗静电导电
导电次方现货供应PA66
导电碳纤维PA66耐磨
超导碳纤维刚性导电
尼龙cf15pa66增强pa
尼龙pa66cf30增强ppapa46
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碳棒尼龙pa66cf15pa66cf30
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尼龙pa66cf15pa66cf30pa66cf20
尼龙pa66cf30增强66
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