<p>Qingdao Yonghuanxin Plastic Machinery Co.,Ltd  is in Jiaozhou, a beautiful and abundant town where there are Jiqing highway. Qinghuang highway.Tongsan highway and Jiaoji railway,crossing it,So the transportation is really covenient. Our plastic products is including conical twin-screw extruder, single-screw extruder,the...Read more