To judge a manufacturer's reliability, first check whether it has factory-direct production capability and complete processes (welding, bending, surface treatment and assembly).
Next, check flexible customization, controllable lead times, timely after-sales response, and the ability to handle non-standard customization and OEM orders.
We recommend an on-site visit or requesting samples, focusing on weld quality, structural strength and stacking stability, before confirming long-term bulk supply.