Sliding Table Saw,Woodworking Panel Saw,Cnc Beam Saw Line,Automatic Woodworking Panel Saw Jinan Jing Xun Cnc Equipment Co., Ltd , https://www.jn-jingxun.comAmmonia special valve series is for ammonia, liquid ammonia transport special requirements, combined with the actual situation of the domestic valve, the use of novel forms of sealing and reliable design of the seal structure.