CHANGLONG | Smart Entrance Solutions Manufacturer

Quality Control

Every product passes a fixed inspection chain.

Quality Control Process

Every product passes a fixed inspection chain before packing:

Incoming Material Check

Steel / aluminum thickness, motor brand and accessories verified against BOM.

In-Process Inspection

Welding, coating and assembly checked at each station.

100% Function Test

Every gate runs 50+ open/close cycles; bollards tested at rated pressure.

Pre-Shipment Inspection

SGS or buyer-designated third-party inspection supported.

Export Packing

Steel frame + wooden case, photos sent to buyer before container loading.

After-Sales Support

12–24 months warranty, spare parts and remote technical support.

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