1. X-ray against lead sheet thickness over 0.25mm 2. Thickness ... X-rays. Custom product is accpetable as specification, thickness, or may be materials like Pure lead or Lead ... market" 3. Enought weight, smooth face, pure lead materials, using PVC cover in item to make ... rolled, cold extrusion, cold heading, punching, forming lead chain, lead rope, weaving, surface treatment and other related equipment. ...