... , drill collar, safety clamps, elevator, mud pump and stabilizers for water well, oil field, construction, geothermal, directional boring, and ... API Standard3 Material:steel4 Type:WA-C,WA-T.5 WA-C accommodate pipe from 3 1/2 to ... chain linksWeight mm ( in ) kglbWA-C88.9-117.5(31/2-45/8)720.946 114.3-142.9 ... ,I will send the Competition price with Top-quality supply high quality WA-C & WA-T Safety Clamps