重型铸造阀体材质可选择304,316或317不锈钢(如果需要，也可提供其他合金钢)。
The heavy duty cast body is available in 304, 316 or 317 stainless steel (other alloy on application).
用于保温隔热绝缘的阀体具有2英寸的加长管径，材质是铸铁或球墨铸铁。
For insulating the body with 2-inch longer diameter, material is cast iron or ductile iron.
更换阀体材质和密封圈复合夹层可适用不同介质。
Different body materials and seal ring compound folder layer are suitable for different medium.
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