Manufacturing is not an exact science like Math. The question is not if, but how severe the quality issues are in your shipment
Most of the defects found from the pre-shipment inspection are:

• Untrimmed thread ends
• Scratches
• Dirt marks
• Uneven
• Minor cosmetic issues

This is even to be expected. However, there are also more severe quality issues:

• Loose parts
• Incorrect labels
• Incorrect design
• Printing peel off
• Damages

There is no manufacturing in any country including China without quality issues, even your products are manufactured by robots.
However, what is unique to China, and most other countries in Asia is that it will be difficult to return goods if you find quality issues in your own country.

For this reason, quality inspections are a crucial step in the process. You simply cannot skip this part of the process.

First Article Inspection
Pre-Production Inspection
During Production Inspection
Pre-shipment Inspection
Container Loading Supervision

• The quantity produced check (semi-finished, finished, and packed)
• The product specifications check (size, dimensions, colors)
• The labeling and marking check
• The packing and packaging check
• All possible functions and possible on-site tests (safety, abuse, printing, etc)
• Dimensions and measurements
• Visual inspection (look for damages and defects)

Firstly, you should never even a consider a supplier that is not fully accepting a third party inspection service.

The suppliers that do reject, or even hesitate to accept, a quality inspection always (and I mean always) have something to hide.

Such suppliers intend to scam you or subcontract your order to a local sweatshop.

Yes, you should inform your supplier that you intend to get the order quality control inspection as early as possible. Even before you have placed a sample order.

It’s crucial to make the supplier understand that you are a buyer with a serious quality assurance process in place. Not one of those gullible buyers who bend backwards to accommodate the supplier. Any suppliers have no respect for buyers who give in easily to their demands.

You could let them know that your inspection agency will contact them to schedule a Pre-shipment Inspection or Factory audit if needed

At a minimum, you should get the products inspected before the shipment and the balance payment. However, you may also want to consider an on-site quality inspection during production.

A quality inspection that takes during production can help you find early-stage quality issues (i.e., incorrect colours or materials), and correct them while there is still time.

If your order volume is above US$10,000, we would strongly suggest that you do both During Production and Pre-shipment inspections.

Yes,sure.