... 5/42.5R/52.52,Standard: In compliance to the national standards (GB175-2007)3,Brand: QIHAN4,Loading port: Rizhao port ... main products of HaoYu company are 32.5, 42.5, 52.5-class high-performance portland cement, with an ... Cooperation (EMCP)Projects in April, 2004. Near port superiority: The company is 3.2km far away ... from the Rizhao-port,in the Port working Area, and the cargo can be ...