our main products are paper-coated plasterboard production lines with annual capacity from 2 to 20million square meters and gypsum powder production lines with hourly output from 2 to 45 t. we always pursue advanced technology, excellent quality, top-ranking products and perfect services. since the establishment of our company, we have made three great improvements for our products. the latest one improves the quality greatly and increases the output of plasterboard by 30 to 50 percent. contact: kathy li mobile:86-13473795736 shijiazhuang longsheng machinery equipment co.,ltd add: no.6 liuyang street, shijiazhuang city, hebei province, china tel: 86-0311-86859778-8010 fax: 86-0311-86855978