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钨钴合金又称碳化钨-钴硬质合金。按钴含量,可分为高钴(20%~30%)、中钴(10%~15%)和低钴(3%~8%)三类。这类金属陶.
2024
PPE是聚苯醚,是一类耐高温的热塑性树脂,同时是一种综合性能优良的热塑性工程塑料。PPE的优异电性能使其广泛应.
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