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DIN 42560 Type a or Welding Neck Transformer Radiator Valve, DN80 Vacuum Soft Seal, Forged Steel / Stainless 316, Find Details and Price about Butterfly Valve Plate Vacuum Butterfly Valve from DIN 42560 Type a or Welding Neck Transformer Radiator Valve, DN80 Vacuum Soft Seal, Forged Steel / Stainless 316 - Hebei Chijiang Import and Export Co., Ltd.