广腾阀门铸铁截止阀球墨铸铁截止阀厂家.
铬镍钼钛钢Cr.Ni.Mo.Ti steel 铬镍钼钛钢Cr.Ni.Mo.Ti steel 铬镍钼钛钢Cr.Ni.Mo.Ti steel 铝青铜Albronze 柔性石墨Flexible graphite 不锈钢Stainless steel 可锻铸铁Forgeable cast-iron
J41Y-I型J941Y-I型 铬钼钢 Cr.Mo steel 铬钼钢Cr.Mo steel 合金钢Alloy steel 钴基硬质合金钢C0-based carbide alloy steel 铝青铜Albronze 柔性石墨Flexible graphite