PSG will do its best to fulfill customers’ needs PSG will be always with you and exert unceasing efforts for the customer satisfaction through the supply of the finest gas Customers are the source of all values PSG has made efforts for the prompt response to customers’ requirements. In accordance with the faith that customers are the source of all values, PSG has done its best for the customer satisfaction understanding promptly what customers need and what customers want. PSG will exert unceas...