DN125 forging coupling 1.forging 2.40CR(ASTM 5140) 3.Spraying plastics or Galvanizing 4.service life is long 2-3 times DN125 forging coupling TypeSnap clamp, bolt clamp, screw clamp, wedge clampTechnicalForging, high-temperature 1200 forging and intoApplicationConnection of Concrete pump and pump truck pipelineUsed forSchwing, PM, Kyokuto, Sany, Zoomlion,Ihi, NiigataSize4inch-6inch other sizes ...