Abstract: A hand net comprises a rod body, of which one end has a handle portion and the other end supports a net portion through a hoop, in which the hoop includes: a T-shaped member of which one end is connected to the rod body and the other two ends form a pair of opposite support ends, each support end being provided with a pivot bearing portion; a pair of flexible rods passing through a roll-rim channel of the net portion respectively. One end of each flexible rod has a ball stud pivotally mounted in the pivot bearing portion. The other ends of the flexible rods can be detachably connected with each other through a pair of connection bars.

Abstract: An electroplating anode titanium basket including a fixing section, a resolution section and a surrounding section. The surrounding section can effectively increase the area of the insoluble anode and enhance the load ability of the anode. The increased area of the soluble anode can effectively work without quickly increasing the concentration of the electroplating bath. The supplier is resolved on the face opposite to the work piece so that the effective resolution of the supplier is enhanced to truly increase the production ability of the electroplating operation. In addition, the supplier is prevented from being stuck so that the supplementation of the supplier is facilitated and the using effect is improved.

Abstract: An alarm device adapted particularly for the indication of electrical leakage and mal-insulation of electrical appliances disposed in association with a marine tank for use in fish raising. An electrical leakage sensor unit is provided in the tank, to which are electrically plugged the illumination light, air pump, temperature controller, water filter member, germicidal light, so that an alarm signal led via an IC comparator and further to a sonic frequency vibrator for transformation and further to an signal amplifier and subsequently to a parallelly-connected buzzer and red-light indicator to simultaneously alarm the operator of the hazard of electrical leakage and mal-insulation.

Abstract: A computer desk comprising a pair of U-shaped frames of which one is longer than and pivoted to the other, two pairs of wheels disposed on the ends of the limbs of each U-shaped frame, two boards engagably disposed on the top of the inverted U-shaped frames and height adjusting device. The height adjusting device comprises three length adjustable rods connecting between the frames and between the boards and the frames. Adjusting the length of the adjusting rods changes the height of the boards and the angles of the boards with respect to the plane of the horizon so that the height of the desk is adjusted.