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清管阀
固定球阀
DBB球阀
金属硬密封球阀
全焊接球阀
Casting
Production
Testing
Enterprise
Industry
Pigging valve
Forged steel fixed ball valve
DBB double ball valve
Hard sealed ball valve
All-welded ball valve
Top ball valve
Forged Floating ball valve
Low temperature ball valve
碳钢,奥氏体不锈钢,双相钢,蒙乃尔合金,英科涅尔合金,哈氏合金。