Slip On Welded Positive Bow Centralizer (VE-13) Product Details Slip-on Positive Bow Centralizer are manufactured with solid end rings that can be easily slipped on the casing OD during installation.Centralizers bow have strongly welded to the End Collar under required temperature and condition with 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).These are generally shipped in assembled condition. Enquiry