鉄てっ製せいalso: てつせいてっせいCommon word›Freq.FrequencyTop 50,000Meanings1noun which may take the genitive case particle 'no', nounmade of iron; ironUsed as a no-adjective or noun to describe objects made of iron. Common in product descriptions and technical contexts.この門もんは鉄てっ製せいです。