JIAHEM

Blank electronic chip cards; Coils, electric; Electric transformers; Electronic controllers used to reduce power consumption; Gasometers; Headphones; Integrated circuits, integrated circuit chips, and integrated circuit modules for digital video compression and decompression; Power distributing boxes; Printed circuit boards; Rectifiers; Refractometers; Switches, electric; Electric resistors; Electrical plugs and sockets; Optical apparatus and instruments, namely, optical ports for underwater photography, dome ports for underwater photography, wet diopters, adapter lenses for underwater photography; Precision instruments for manipulation and positioning of microscopic objects; Surveying machines and instruments; Tool measuring instruments