About ISHIYAMA HIROKI
About 住友林業 筑波研
About metal fitting
About architectural hardware
About dwelling house
About wooden structure
About structural joint
About structural strength
About time course
About degradation(alteration)
About durability design
About wooden house
About architectural metal fitting
About jointing structure
About Wooden structures
About Connections
About 木造
About 住宅
About 金属接合
About 構造性能