良い硬さ 柔らかい鋳鉄 砂鋳造のためのプリインベードレール肩

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February 24, 2025
Video Description:
Discover the Good Hardness Malleable Iron Cast-in Pre-embedded Rail Shoulder, designed for sand casting in railway construction. This durable component ensures secure rail fixation with high tensile and yield strength, meeting GB standards for safety and reliability.