Screw on base Chrome-plated pump piston and ram for added rust resistance Extension screw gives added height when necessary Return Springs for Faster descent Minimum Height: 9-5/8" Max. Height: 19.2″/488 mm Weight:from 20 Tons and up to 50 Tons Extension screw gives added height when necessary Meets ANSI/ASME PALD standards and CE/GS .
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