A walking support and a horizontally moving oil cylinder are arranged under the main body of the gantry. Inverted arch side templates are arranged on both sides of the main body of the gantry, so that the gantry can move back and forth, left and right. The tunnel inverted arch self-propelled frame has a simple structure, low cost, and low failure rate. While ensuring vehicle traffic, inverted arch construction can be carried out, which can effectively ensure the construction speed of the tunnel and effectively reduce construction accidents.
Inverted Arch Trestle Trolley,Electric Trestle Trolley,Arch Trestle Trolley,Hydraulic Inverted Arch Trolley Anshan Lijian Engineering Group Co. LTD , https://www.lijianformwork.com
On May 17, the Ministry of Commerce announced the first batch of export quota supplements in 2012. 12 companies, including Chinalco, obtained rare earth export quotas, totaling 11,650 tons. In addition to the list of quotas announced at the end of last year, 23 companies in the first batch of rare earth export quotas in 2012 have been listed, totaling 22,195 tons of export quotas. In this supplementary quota list, Baotou Steel Group's two subsidiaries, Baotou Huamei Rare Earth Hi-Tech Co., Ltd. and Baotou Tianjiao Qingmei Rare Earth Polishing Powder Co., Ltd. are on the list, and the most important northern rare earth group in Inner Mongolia has been concerned. Rare Earth High-Tech Co., Ltd. is not on this quota list. On December 27 last year, the Ministry of Commerce announced the first batch of rare earth export quotas in 2012, 11 of which obtained the first batch of export quotas, which were issued at 80% of the annual quotas, totaling 10,546 tons; For the 20 enterprises that conducted environmental verification, the Ministry of Commerce reserved and announced the first batch of entitlements of 17,808 tons, but the quotas have not been released yet, and will be released after environmental protection verification. It can be seen that this year's rare earth export quota will be closely linked to the results of environmental protection verification. According to the Ministry of Commerce, the enterprises that have issued quotas are the enterprises to be audited that have passed the second batch of environmental protection verification by the Ministry of Environmental Protection, and Baotou Steel Rare Earth has not passed the second environmental impact assessment. The Ministry of Environmental Protection announced the "publication of the list of the second batch of rare earth enterprises that basically meet the environmental protection requirements", together with the first batch of 15 listed rare earth enterprises announced last year, a total of 56 rare earth enterprises have achieved environmental standards, but the largest rare earth group in the north The Baotou Steel Rare Earth has not passed the two environmental assessments.