It is widely used in the construction of the projects e. G. Prospecting, railway, road, port, bridge, water conservancy and hydropower, well, industrial and civil construction, geological exploration, especially used in mining wireline diamond core drilling and inclined hole wireline core drilling, etc.
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The PSC data will be collected by the Thetis database of the European Maritime Safety Authority. This new inspection system was established in accordance with the 2009 European Union Port State Control Act and provides data reports to legitimate demand parties and will replace the existing PSC systems in EU countries. After the new system is put into use, the European Commission hopes that while reducing the number of inspections by well-documented operators, the low standard ships will disappear from the EU waters. The European Commission said that the biggest challenge will come from Asia, especially those engaged in transport on the Black Sea. Although vessels can flexibly switch flag states, ship owners and operators, European Union officials believe that this new system will be airtight. Each ship has an IMO number and it is difficult for operators to conceal it. In addition, this public registration system will remain updated daily.
The mast (derrick) type is generally classified as A type, K type, tower type and mast type etc.
A type mast, its leg section is rectangular or triangle shape, with better loading capacity and stability,connected with pins between sections, installed at low level and erected or lowered down integrally by drawworks and A-frame.
K type mast, namely front opening mast, its transverse section is a shape truss structure, its both sides are composed of several pieces or segments, its back is rigid frame or pole system of truss, connected with pins or bolts between segments and members, may be installed at low level and erected or lowered down integrally by drawworks or hydraulic cylinder, has the advantages of convenient installation and teardown, excellent rigidity.
EU will expose low standard ship operators
The European Commission recently warned that from January 1 next year, the low-standard ship operators in EU ports will be exposed. The European Commission pointed out that all ship operators who visit the EU ports will be classified according to certain rules, and then be registered publicly. Operators will use the name of the company registered on the ship's international safety management certificate. For newly registered operators, indicators such as ship type, defects detected in the Paris memorandum area, and retention rate will also be included.