- 치수 : 1/2" ~ 3"(M12 ~ M72)
- 강도/재질
* KS/JIS : A2-70, A4-70, A2-80, A4-80, 316, 304, 321, 347, 304L, 316L, 310S, 410
* ASTM : A193-(B6, B8, B8M, B8MCL2, B8CL2, B8T, B8C), A320-(B8, B8M, B8CL2, B8MCL2), A453-660A, A453-660B, DUPLEX, SUPER-DUPLEX, INCONEL625, INCOLOY825