灰铸铁 Gray Cast iron ; gray iron ; graphitic cast iron ; gray pig iron

灰口铸铁 grey cast iron ; Gray iron ; gray pig iron ; ferrosteel

灰铸铁件 Grey iron castings ; Grey cast iron ; Grauguss ; Grey cast irons

铸灰口铁 Castinggray iron ; Casting,gray iron

灰铸铁、可锻铸铁 Csatiom forageable casriron ; Castirom for ageable casriran

灰口铸铁管 grey cast-iron pipe ; GCIP ; iron pipe

灰铸铁金相 Gray cast iron metallography

普通灰铸铁 regular gray iron ; Common grey iron

针状灰铸铁 acicular grey cast iron

灰铸铁棒 Gray cast iron bars