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Standards approved for your company ISO9...?
It may be folly to reduce weld length with "poor standard" in your statement. A Certified Welder can make welds to a finite strength for a given length. A poor standard welder would produce dangerously under-strength welds if confined to the same length.
You seem to be walking a dangerous path rushing into change things to save money when it appears you are not entirely conversant with all of the ramifications.
Having said that, proceed cautiously, and do some research on welding standards for your locale. A good place to start would be Lincoln and Miller websites for educational books on welding. Then get your company to spend the bucks hiring a Certified Welder.