Quality is Our Foundation, Excellence is Our Tradition
At Bangtu company, quality control is at the heart of everything we do. As a leading manufacturer of steel grating, we understand that our products play a critical role in ensuring the safety, durability, and efficiency of industrial, commercial, and architectural applications.
We have established perfect steel grating quality inspection system. For every order, no matter the amount is small or big, we carefully implement our quality inspection process, and feedback the quality inspection results to the customer, so that customers can rest assured.
Bangtu QC process
Step 1: raw material test: The quality of raw materials directly affects the bearing capacity and price of steel grating. We guarantee that the specification of raw materials are consistent with the contract.
Bearing bar thickness test
Bearing bar width test
Cross bar diameter test
Step 2: welding test：Welding will affect the beauty of the product, and it is the show of the technical level of workers and the test of the use of the machine.
Distance test
Size test
Welded point test
Step 3: surface treatment test: Surface treatment affects the service life and effect of the product. Hot-dipped galvanizing is the most common surface treatment method for steel grating, and the level of zinc directly believes the service life of steel grid.
Adhesion test
