Abstract: An austenitic steel alloy includes manganese in an amount of from 25 wt % to 31 wt %, aluminum in an amount of from 7 wt % to 10 wt %, carbon in an amount of from 1.2 wt % to 1.6 wt %, molybdenum in an amount of more than 0 wt % and less than 6 wt %, and a balance of iron.

Abstract: A card edge connector for receiving and retaining an interface card having two pin holes mainly includes a base and two elastic arms. The base is arranged to a main board, and a slot is formed to a front side thereof. The interface card is inclined inserted into the slot and pushed to parallel the main board. The two elastic arms are arranged symmetrically to the base. A buckle and a positioning portion are formed to a lateral side of the elastic arm. The buckles serve to buckle two lateral sides of the interface card, and the positioning portion has a positioning pin being inserted into the pin hole of the interface card. Through the components, the improved card edge connector of low manufacture cost is capable of retaining the card from escaping.

Abstract: A hard-brake structure which includes a securing seat having a side edge provided with a plurality of teeth, a pulling shaft seat pivotally connected with the securing seat by a pivotal shaft, a pulling shaft having a pivotal section pivotally connected with the pulling shaft seat, a positioning toothed block pivotally connected with the pulling shall seat, a resilient member having a first end fixed on the pulling shaft seat and a second end bearing against the interlinking section of the positioning toothed block, an interlinking block fitted in the sliding slot and the hole and capable of moving in the sliding slot and the hole, a pulling block having a first end protruded out of the opening of the pulling shaft and a second end connected with a linking rod, and a spring mounted on the linking rod of the pulling block.

Abstract: This invent is an improved drawing easily slice for the interface car mainly for pulling out the interface card from the chassis of the computer and the main board easily, insides: there are several expansion slots on the main board; there is a fixing base on the chassis of the computer, and a lateral side on one side of the fixing base; the interface card includes: An inserting slice, it is used to be inserted into the expansion slot; A lateral side, a tetragonal bolt hole in it for the bolt to go through; A pushing piece, set a hole, and is fixed with the lateral side in swinging style. Also there are a pushing part and a supporting part on the pushing piece. The supporting part extends to the top of the lateral side, and the exerting part extends to the outside of the fixing slice, so it can be exerted easily and the supporting part can be swung a certain angle.

Abstract: An improved structure of a computer housing comprising a front side board, a rear side board, a top side board, a bottom side board, a left side board, and a right side board, characterized in that a plurality of pivot members are hingedly disposed along the edges of the respective side boards, the side boards having one edge adjacent to other side boards, a plurality of securing seat plates are provided on the from side board for the mounting of a optical disc, a hard disc and soft disc, a holding seat plate is disposed on the rear side board for the mounting of a power source supply, and a plurality of the pivot members are formed along one edge of the front side board and a rear side board such that the computer housing can be spread out on as a flat plan. The present computer housing requires a small space for transportation and therefore the cost of transportation is greatly saved. In addition, the present invention provides a convenient installation and maintenance.

Abstract: A structure of a space generator system and device for engine is disclosed and the generator system characterized in that a ignition device leads current from a battery to a spark plug within the engine to ignite so as to drive the engine to operate, the power of the engine drives the generator so as to produce current to be stored within the battery, a manual driving device is provided so that the space generator device temporary stores kinetic energy and the ignition device releases the kinetic energy of the generator device to urge the engine generator to produce current to be leaded to the battery to ignite the spark plug so as to drive the engine to operated, thereby when the battery is exhausted, the generator can be operated manually and urgently ignite the engine.