The major products are the main scale, height gauge, undercut depth gauge and multi-foot four parts,。 It is a welding inspection feet, for a variety of bevel angle detecting weldments, height, width, gap and undercut depth . It applies to checks on boilers, bridges, shipbuilding, pressure vessels and oil pipelines. Also applies to the measurement of welding requiring hi-gh quality components. This product is made of stainless steel, reasonable structure, beautiful appearance, easy to use, wide measurement range., Manufacturer: GQNBLVHZUPDM