... Weight:0.1kg to 5kgs Certificate:ISO9001 Cast Iron Head Jack Material: Gray iron & ductile iron & malleable iron according to ASTM ... . specialize in component fastener field includes nuts, bolts, washers, screws,pins, rivets, anchors per international standard IFI, ANSI, DIN, ISO, JIS ... quality, competitive price and on-time delivery. Cast Iron Head Jack