... 1.This product can be used for nonferro metal factory 2.In the nonferro metal cast factory, or nonferro refine factory 3. ... 1 This product can be used for nonferrous metal factory.In the nonferro metal cast factory, or nonferro refine factory,they use ... easy operated.This product can be used in machinery, smelt metal, construction material,ceramic and chemistry industrial fields.main parametercoal gas ...