"www.jestanengineering.com" contact# +223050139327 The welds carried out are according to ABS welding rules and regulations; American Bureau of Shipping All welds carried out by the personnel of Jestan Engineering Services are Non-Destructive Tested and certified to ensure quality. Where necessary a weld is load tested to meet the standard required. In the case of oil and gas pipe and pressure cylinder welds, they are subjected to radiography and hydro-static tests. Jestan Engineering Services ensures pre-qualification of its welders according to ABS regulations on recruitment and ABS welding Codes before employed to carry out welding jobs.