Corrosionresistant cylinder construction includes epoxy coating on the head, cap and gland, all of which are castiron.
耐腐蚀的缸体结构包括在顶部、盖和密封装置上增加环氧涂层,并且全为铸铁材质。
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The castiron pipes have many advantages, such as high strength, good toughness and corrosionresistant. They are used widely for supply draining water and gas transportation in city and industries.