250A53歐洲進口彈簧鋼東莞明富現(xiàn)貨直銷

250A53彈簧鋼型號優(yōu)質(zhì)進口明富鋼材專業(yè)銷售

歐洲標準彈簧鋼250A53量大從優(yōu)明富現(xiàn)貨供應

明富鋼材優(yōu)質(zhì)銷售---250A53彈簧鋼C. Si. Mn. S. P.

明富鋼材優(yōu)質(zhì)銷售---250A53彈簧鋼0.53% 1.75% 0.75% 0.05% 0.05%

明富鋼材優(yōu)質(zhì)銷售---250A53彈簧鋼250A53 is a silicon mangenese spring steel, supplied in the as rolled contition. 250A53steel is suitable for oil hardening and tempering