During the May 1st period, Weihai's industrial production operation and coal and oil supply were stable and orderly.
(1) Some enterprises insist on production. During the holiday period, the city's electric power (heat), gas, tap water and other public welfare production enterprises, such as China Glass Coated Glass, Huapeng Glass and other continuous production enterprises adhere to the festival production. Among the 156 key enterprises dispatched, 18 companies including Triangle Group, Chengshan Group, Expansion Fiber and Wei Da Group are not on vacation, accounting for 11.5% of the dispatched enterprises; 19 enterprises have one day off, accounting for 12.2% of the dispatched enterprises. There are 43 enterprises that have 2 days off, accounting for 27.6% of the dispatching enterprises; 76 enterprises have 3 days of vacation, accounting for 48.7% of the dispatching enterprises. During the festival, Chengshan Group produced 85,000 tires with an output value of 67.47 million yuan; Chishan Group produced 486 tons of aquatic products with an output value of 33.99 million yuan; Wei Da Group produced 360,000 drill chucks with an output value of 10 million yuan. (2) The coal and electric oil market is running smoothly. During the holiday period, the city's power supply is orderly, the power grid operation is safe and stable, and the supply and demand of the refined oil and coal market are stable. All the petrol stations in Sinopec and PetroChina insist on normal work, open the market supply, and sell 1300 tons of refined oil per day. Up to now, the city's thermal coal inventory of 500,000 tons, available for consumption for more than 25 days; refined oil inventory of 20,000 tons, available for consumption for more than 14 days. (3) Safety production is in good condition. During the festival, Weihai Power Supply Company continued to carry out large-scale operation and operation of Spring power equipment operation and maintenance, and carried out carpet inspection and comprehensive treatment on a line-by-line basis, one by one, and cleared 76 lanes of garbage in the line, and pruned 2,142 trees in the cut-off line, and installed insulation protection. At 343, the electric pole anti-collision warning sign is installed at 98 bases, and the hole 163 is sealed. Newly discovered and timely eliminated 6 critical defects in critical line segments and 8 serious defects. During the holiday season, the transmission line above 10kV was operating normally and no safety incident report was received.
Non-tapping screws are machine Screw, the pieceworker to be fastened must be tapped with taps in the screw hole in advance to match the screw threads.
The difference between tooth screws and other screws depends on whether they can be used together with nuts. Tooth screws can be used with nuts. And relative to the screws of other teeth, there are self-tapping screws. The nut of this kind of screw has no bow teeth. As for the standard teeth and fine teeth are only different pitch, it is the nut of the machine screw
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