TOP
- 치수 : 1/2" ~ 2"(M12 ~ M52) - 강도/재질 * KS/JIS : 304, 304L, 316, 316L, 321, 347, A2-50, A2-70, A4-50, A4-70, * ASTM : B8, B8M, B8T, B8C,