About OSAWA YOSHIAKI
About 金材技研
About ARAKANE GORO
About 金材技研
About TAKAMORI SUSUMU
About 金材技研
About SATO AKIRA
About 金材技研
About HAISHI HIDEKI
About 品川白煉瓦
About NAGAMORI KEIJI
About 品川白煉瓦
About gray cast iron
About Transformation structures,work structures
About 鋳鉄
About 凝固組織
About 超音波振動