All GN Solids Control  equipment are made in China. Here in USA we do some assembly and repair work, some spare parts and wearable parts are also available in GN Houston, USA.
It’s not doubt that customers can always find a cheaper price in China, but you do get what you paid for. GN Solids Control is devoted to provide the most cost-effective solids control equipment and waste management equipment, our equipment quality can even beat USA made brand. We will never ever try to cut our cost by using poor quality materials, all of our components are top brand, such as the centrifuge 2 main bearings we use genuine SKF bearing, the main electrical components we use ABB or Siemens.
'Seeing is Believing', the most direct way is visit GN China manufacturing plant and also visit the other vendors. To be honest, many China solids control manufacturers were the former employee of GN, they left GN with the former version drawings and started a new company. We actually didn't pay much attention to them, our largest advantage is we keep upgrading our equipment year by year based on thousands of sites feedback, such as the shaker we upgraded to F version (the previous version is A, B, C...).
Every year hundreds of customers visit GN manufacturing plant, after they visited the other vendors' factories all of them will come back to us. Quality control is vital important for us and also for our customers, this is also the main reason why Baker Hughes, Bariod, Shell, OXY etc keep using our equipment. And you will never need to worry about the after sales service, either our engineers in USA or in China can be send to your work site in 48 hours.
Suggest you check with the other Vendor and see whether they can provide a convincing project reference as we provided, also checked on the after sales service.