... and wearing resistance; 3, in order to get the laminar flow result, the flow passage section design of the die head are optimized ... ; 4, to plating hard chrome layer on the surface of flow passage to reduce the wearing during the running; 5, higher ... Factory Location:Sihaoqiao Industry Zone, Leyu Town, Zhangjiagang City, Jiangsu, China QA/QC:Third Parties Number of Production Lines:Above 10 ...