Is steel roll up doors tested before shipment?
The Pre-Shipment Inspection (PSI) is one of many types of quality control inspections conducted by Shenzhen Hongfa Automatic Door Co, Ltd.. This inspection is done according to standard QC Test, or based upon customer requirements. Samples are selected and inspected for defects at random, according to these standards and procedures. For us, Pre-Shipment Inspection is an important step in the quality control process and is the method for checking the quality of roll up door before they are shipped.

Known as a professional custom roll up doors manufacturer, Hongfa Automatic Door Company has a fast development. The spiral door is one of the main products of Hongfa Automatic Door Company. Hongfa roll up door is designed by a team of professionals who have extensive industry knowledge and clearly know customer needs. The product features dust and insect prevention. Its quality is guaranteed by the comprehensive quality control system. The product has operation methods to choose from.

Hongfa's mission is to focus on developing the higher quality custom roll up doors. Contact!
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