About OKAZAKI RYOTA
About 品川リフラクトリーズ
About NIITSUMA HIROYASU
About 品川リフラクトリーズ
About MATSUNAGA TAKAYUKI
About 品川リフラクトリーズ
About submerged nozzle
About durability
About quality change
About graphite
About particle size(ratio)
About constitution
About crack
About physical property
About mechanical property
About porosity(ratio)
About modulus of rupture
About corrosion resistance
About thermal shock resistance
About dipping
About ロングノズル
About Refractories
About Furnaces,casting equipment
About ロングノズル
About 浸漬
About 開発