Changsha Jintuo Experimental Equipment Co.,Ltd was established in 1986,We had 2 production bases in Hunan and Shandong province. Our Company specializing in manufacturing and development :crucibles,cupels/Bullion blocks,casting crucibles,Jewelry casting tool ,Structure ceramic ,Refractory products etc. Jintuo is regarded as a leader in the ceramics industry with a strong reputation for our high quality products in China. We also manufacture and service the market with a variety of ceramic shapes to melt steel alloys, precious metals, and glass.