Factory wholesale standard size of refractory fire brick for casting

タイトルまたは説明

1. The high density of the ceramic sprue tube for casting greatly reduces the secondary oxidation of the molten steel in the pouring process, and reduces the inclusion of objects  into the casting body. The inner surface is smooth with small resistance, so the molten steel has fast speed, which can effectively reduce all kinds of resistance ,such as receive gating system for casting, casting sand core and the casting structure itself, which can also reduces thermal cracking cased by heat stress within the castings.