专营:45#/S45C/ /Cr12/Cr12MOV/D2/H13/4OCr/2738/2311/718/P20S136H/GS2316/NAK80/DC53/SKD11/2510/SKD6I/8407/2344/SKH9...,专营,45#/S45C/ /Cr12/Cr12MOV/D2/H13/4OCr/2738/2311/718/P20S136H/GS2316/NAK80/DC53/SKD11/2510/SKD6I/8407/2344/SKH9...