... : GB, ISO, DIN, ASTM, JIS, etcConstruction: 1X7, 1X19, 6X7, 7X7, 6X19, 7X19, 6X37, 6X36, 6x12, 6X24, 6x25,8x19S, 19x7, 35x7, etc ... sling etc.4. Construction: 1X7, 1X19, 6X7, 7X7, 6X12, 6X15, 6X19, 7X19, 8X19, 6X37, 7X37, 6X24, 6X25, 6X29, 6X31, 6X36, etc ...