Where the third-stage cooling seal is adequately sealed roller is rahfu, the pressure a little bit, to make cross-sealing, smooth, beautiful, impermeable.

• 其洋第三段加冷不开口辊筒是在不竖不开还来冷不合的环境下，再压一下，纲的是使不竖不开愈加不结实、裂缝、好看、不渗漏。