铆钉顶棒是一种特殊形状的金属实心块。
提供反射的特殊形状反射镜，没有什么升级的空间。
Given their specially shaped reflectors, there is not much that can be done to upgrade these.
据了解，赛尔瓦斯由将近3000多块特殊形状的欧洲落叶松木粘合而成。
Silvas Capitalis has been made from approximately 3000 specially shaped pieces of European Larch.
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