Dear Sirs: We are interested in urgently purchasing 10, 000 telescopic hydraulic jacks with the following specifications: 4 ton, 2 piston jack: A) The Base height was 160mm. B) The height of each piston must be 90mm C) The grinding of the shafts and cylinders must be improved to a very fine degree (like a mirror) , so that it looks like any good hydraulic jack on the market. D) the cap on the adjustable screw must be welded or screwed to the stem of the adjustable screw. E) the over all height of the jack should be no less than 405mm. If you have this product can you please let me know ASAP so that we can begin this purchase. Please reply to my email