Risson now owned more than 200 sets of digital-controlled lathe and processing center, it has been certified to ISO9000-2000 and pressure vessel AZ, now it undertaking API and CE certification, and now we manufactured to the advanced international standards, such as API??NSI??S??IN??IS??PI and GB ,or no standard products to meet customers??requests, like Knife gate valve, slurry valve, , stainless gate valve series(cast iron ZG1Cr18Ni9Ti, ZG1Gr18Ni12Mo2Ti, CF8, CF8M, CF3, CF3M), globe valve, check valve, ball valve with size ranging from DN50~1200mm,the pressure from 150Lb to 2500Lb(1.0Mpa~42.0Mpa) and the temperature from -196??+650??and it suitable for acid, alkali, water, steam, seawater, coal gas, natural gas. ect caustic and no caustic medium product, the product widely used in petroleum, chemical, paper making, fertilizer, brewing and metallurgy ect. And our product has been greatly recognized by users for their consistent and superior quality.
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Risson now owned more than 200 sets of digital-controlled lathe and processing center, it has been certified to ISO9000-2000 and pressure vessel AZ, now it undertaking API and CE certification, and now we manufactured to the advanced international standards, such as API??NSI??S??IN??IS??PI and GB ,or no standard products to meet customers??requests, like Knife gate valve, slurry valve, , stainless gate valve series(cast iron ZG1Cr18Ni9Ti, ZG1Gr18Ni12Mo2Ti, CF8, CF8M, CF3, CF3M), globe valve, check valve, ball valve with size ranging from DN50~1200mm,the pressure from 150Lb to 2500Lb(1.0Mpa~42.0Mpa) and the temperature from -196??+650??and it suitable for acid, alkali, water, steam, seawater, coal gas, natural gas. ect caustic and no caustic medium product, the product widely used in petroleum, chemical, paper making, fertilizer, brewing and metallurgy ect. And our product has been greatly recognized by users for their consistent and superior quality.