灰铸铁，球墨铸铁，铸钢，阀体不锈钢。
Grey cast iron, nodular cast iron, cast steel, stainless steel.
主要产品：铸钢、不锈钢、铸铁、橡胶密封、手动、电动、气动、蜗轮传动。
The main products: cast steel, stainless steel, cast iron, rubber seal, manual, electric, pneumatic, worm transmission.
根据不同需要，材质可选用铸铁、球墨铸铁、铸钢、锻钢、不锈钢、高温钢、合金钢等。
You can select casting iron, nodular cast iron, casting steel, forged steel, stainless steel, high-temperature steel, alloy steel, etc. for use according to your needs.
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