Conclusion Reinforced Fiber Composite Resin dowel cores have the advantage of high strength and good color, they are easy to operate and can be used clinically as root canal dowel cores.
结论加强纤维复合树脂桩核的强度高，色泽好，操作方便，可作为根管桩核材料在临床应用。
Gas-phase oxidation treatment resulted in distrihution of some micro-pores and ditches at the carbon fiber surface and led to stress concentration therefore, the composite strength was not high.
结果表明：空气氧化处理碳纤维表面形成微孔和刻蚀沟槽，容易形成应力集中，复合材料的强度不高；
Composite stainless steel tube fiber unit, High strength steel wire armored inside. Hermetically metallic sealed, HDPE sheath.
复合不锈钢管光纤单元，高强度钢丝内铠，金属管密封，高密度聚乙烯护套。
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