国产精品自在自线一区,高清国产日韩视频在线,国产全黄a毛片一级视频,欧美一级片久久悠悠,情趣楼宅福利鲁一鲁,国产精品视频你懂的网址,国产美女调教男视频网站,亚洲色无码中文字幕YY51999,国产天仙tv免费在线看,女十八AV毛片免费

       Weifang Zhongjia Silicon Carbide Technology Co., Ltd. was established in 2002, before we were called Weifang Zhaotai Engineering Ceramics Co., Ltd. As a deputy director unit of the Weifang Silicon Carbide Ceramics Industry Association, our company is a high-tech enterprise specializing in the production of silicon carbide ceramic products. We have obtained certifications for both the ISO9001 Quality System and the ISO14001 Environmental Management System. Currently, we offer two major series of products: pressure-free sintered silicon carbide(SSiC) and reaction-sintered silicon carbide(SiSiC), which are widely used in mines, metallurgy, power generation, kilns, machinery...