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①MATERIAL: 37Mn OUTSIDE DIAMETER: 219mm
WATER CAPACITY : 40L
DESIGN WALL THICKNESS: 5.7mm
Heat treatment :normalizing.
460pcs20 feet container
FOBqingdao $39.17pc use QF-2 VALVE
②MATERIAL: 37Mn OUTSIDE DIAMETER: 232mm
WATER CAPACITY : 40L
DESIGN WALL THICKNESS: 6.0mm or 5.4mm
Heat treatment :normalizing.or quenching and high temperature tempering
400pcs20 feet container
FOBqingdao $39.37pc use QF-2 VALVE
③MATERIAL: 37Mn OUTSIDE DIAMETER: 232mm
WATER CAPACITY : 50L
DESIGN WALL THICKNESS: 5.4mm
Heat treatment :quenching and high temperature tempering
350pcs20 feet container
FOBqingdao(YA brand)$42.35pc useQF-2 VALVE