LSTD(Shanghai Leading Semiconductor Technology Development Co.,Ltd.),located in Changxing Island, Shanghai, is a technological enterprise engagedin product manufacturing and technology developing in the field of preciseflat lapping , polishing and fine grinding, LSTD is one of the mostprofessional companies of this field in the world. Based on our many yearsof experience and continually technical development, we are able to satisfyour customers with most advanced products, technology and service. Eversince the establishment ,we have built up long-term cooperativerelationships with many leading companies in the field of precise flatsurface processing, carried out technical exchanges and introduction andapplication of advanced products and technologies. Our products and serviceinclude lapping and polishing machines, spare parts, consumables, processdevelopment, lapping subcontractor service etc have been widely used in theindustries like semiconductor, precision optics, oil &gas exploitation,aviation & astronation , nuclear plant and engineering vehicles.