20crmnti, 45# Steel, 40cr, Alloy Steel, etc.
Black, or Golden Corlor, Non-Galvanized Color
12.7mm, 15.24mm, 17.8mm, 21.8mm, 28.6mm
SGS, BV, ISO9001-2008
Anchor Head, Wedge, Bearing Plate, Spring Ring
Two Parts or Three Parts
Hrb70 -100
HRC58-65
Ply Wooden Case or Carton, or Container
SGS, ISO9001-2008, BV