We've Been working with Glentham from yrs now. They're pretty trustful, beneficial fixing problems and generally dependable. Bismuth has unusually low toxicity for significant metallic. Because the toxicity of lead happens to be additional obvious in recent years, There may be expanding use of bismuth alloys presently about a third https://chemicalglobe.com/product-tag/hydrogen-tetrachloroaurate-for-sale-uk/