Hebei Jingniu Group is a high-tech enterprise which specialises in the development and production of rolling crystallized glass, on-line coated float glass, crystal nucleus material and jade crystallized stone.

• 河北晶牛集团是一个以生产经营浮法微晶玻璃、在线镀膜玻璃、晶核材料和碧玉微晶石为主的高科技企业集团。