"B" »ç Æ÷Ç× 1¿¿¬¿¡ On line ¼³Ä¡ ¿î¿ëµÇ°í ÀÖ´Â Slab Width Measurement System (±¹»êȼ³ºñ)ÀÇ µ¿¿µ»ó ÀÔ´Ï´Ù.