Incoming Material Review
Confirm the specified grade, size, quantity, and incoming identification before production starts.
Quality Control
Quality Control Before Shipment
From incoming material to finished shipment, we review stainless steel tube and fitting orders against the required grade, dimensions, CNC machining accuracy, surface finish, packing, and identification.
MaterialIncoming review
DimensionsOD and wall thickness
CNC accuracyDrawing-based inspection
ShipmentPacking and identification
Quality Control Workflow
Each project is reviewed in stages against the purchase order, drawing, and approved sample so issues are identified before shipment.
First-Piece Confirmation
For cutting, bending, end forming, machining, or welding, review the first piece against the drawing or approved sample.
In-Process Inspection
Monitor dimensions, positioning, bend angles, hole locations, threads, and weld condition for batch consistency.
Finished Part and Surface Review
Check outside size, wall thickness, length, appearance, welds, polishing, brushing, mirror finish, or other specified finishes.
Packing and Shipment Release
Confirm quantity, protection, lot labels, bundle condition, and shipping preparation before dispatch.
Inspection Scope
Inspection points are selected according to the tube type and processing route, covering standard tubes, profiled tubes, and fabricated tube parts.
Material and Grade
Confirm specified 201, 304, 316L, duplex stainless steel, or special alloy requirements against incoming information.
Dimensions and Tolerance
Check round-tube OD, square or profiled sections, wall thickness, length, hole locations, angles, and critical assembly dimensions.
Processing Accuracy
Review tube cutting, laser cutting, bending, expanding, reducing, hydroforming, CNC turning-milling, and threading results.
Weld Quality
Review weld appearance, joint consistency, distortion control, surface cleanup, and finished tube assemblies.
Surface Condition
Check 400#, 600#, 3K, 6K, and 8K bright finishes, satin and straight-grain brushing, plating, and powder coating.
Packing and Identification
Confirm quantity, protective film, end protection, strapping, labels, lot information, and customer-specific packing requirements.
Inspection Records
Turn quality requirements into order details
Send drawings, samples, material requirements, critical dimensions, and surface standards with your inquiry. We use them to define production and inspection priorities before shipment.
- Material and specification information
- First-piece or approved-sample standard
- Dimensional and processing requirements
- Surface and packing requirements
- Shipment photos and lot identification
Have a specific inspection or packing requirement?
Send your drawing, sample photo, or quality standard. We will confirm the quotation and delivery approach around your project requirements.