) When using a hydraulic jack to pad the bottom flat, tough. No oil in the wood to expand the bearing surface, and ensure safety. Not a substitute for wood Hubei 30 tons of hydraulic jacks with iron, to prevent sliding. Do not overload, high. When the red line appears Jiangsu sleeve 30 tons of hydraulic jacks, it indicates that the rated lifting height should stop. (4) the number of simultaneous operation of hydraulic jacks Sichuan 30 tons of hydraulic jacks, to have someone directing, so lifting or fall simultaneously. Between adjacent two hydraulic jacks in order to support the wood to ensure the interval to prevent sliding. Sichuan, 30 tons of hydraulic jacks _30 ton hydraulic jack _ Texas aerospace hydraulic provided by Dezhou City aerospace hydraulic machinery plant. Dezhou City aerospace hydraulic machinery plant (www.sdhtyeya.com) strong, credible, in Dezhou hydraulic equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Texas Aerospace Hydraulic and you hand into the brilliant, for a better future!