Welding also involves inspecting the weld seam, as well as finishing it. Do your welds need to be pickled or passivated? Using products made by NITTY GRITTY this can be done quickly and inexpensively. Do you need penetrant test sprays? We sell Babb-Co developers, degreasers and cleaning agents. You can also buy La-Co Markal pens and markers. If a product is not listed, please contact us.