The work moves from factory fit to an approved reference build, then to a paid pilot and a recorded repeat order. Each stage has a document or inspection result that both sides can review before the next commitment.
We review the equipment list, expected volume, current systems, a typical opening schedule, glazing specifications and destination-market requirements. That information narrows the system and decides whether P1, P2 or P3 is practical before a commercial offer is prepared.
The reference build records the system code, representative sizes, bill of materials, joints, available performance evidence and responsibility split. It also states what is supplied from Chongqing and what the local fabricator completes. The same revision becomes the technical baseline for the pilot.
The team first inspects profile sections and corner-joint specimens. A typical pilot then uses 3–10 glass-free kits for local machining where applicable, assembly and testing. Any credit for sample or freight cost is stated in the quotation rather than assumed.
After the pilot, the parties review yield, dimensional fit, packing condition, delivery time and how non-conformities were closed. A project batch follows only when those records are acceptable. Reorder quantities and stock rules are then based on actual consumption data.
