If your effective binder level is not at least as high as the necessary caster level to take a specific item creation feat, you cannot choose that feat.
如果你的有效灵契师等级不高于你想制造的物品的最低施法者等级，那你就不能选择该专长。
2
Rock wool carpet is insulation and other natural basalt ore, etc as the main raw material, by high temperature melting into fine, join the amount of processing from the binder.
岩棉保温毡是以玄武岩及其它天然矿石等为主要原料，经高温熔融成纤，加入适量粘结剂加工而成的。
3
Highbinder content, good toughness and thermal cracking resistance. Used in the stands of prefinish rolling. Suitable for hot rolling thread steel.