Hinged Welded Positive Bow Centralizer (VE-12) Product Details Centralizers bow have strongly welded to the End Collar under required temperature and conditionwith extra low Hydrogen coated Electrodes.Operational and general design features are the same as Non Welded Positive Bow Centralizer. Available Size: 4-1/2” to 20” (Any special sizes or combination can available on request).They are shipped in assembled condition only. Enquiry