Cost-successful Resolution when put next to lifespan of steel and alloy vessels, whose service everyday living might be dramatically shortened because of their inability to resist corrosion the way in which glass lining can. Blended glass/glass-lined design provides the power of glass-lined steel with the visibility benefit of borosilicate glass. https://deanonicw.total-blog.com/a-review-of-glass-lined-reactors-54960601