About MIMAKI TOSHITARO
About 新日本製鉄 鉄鋼研
About MIZUNUMA SUSUMU
About 新日本製鉄 プロセス技研
About TAMANO TOSHITAKA
About YANAGIMOTO SAMON
About 神奈川工科大 工
About oil well steel tube
About Metallic materials
About Oil production and gas production in general
About Structural hardening phenomena
About 油井管
About 加工硬化
About 圧潰強度
About 計算式