Seamless pipe JIS STKM13, STKM12, 
Process  Hones pipe
Hydraulic cyliner honed
Certificate : CE
Tolerance : H8, H9, H10
Standard : JIS, DIN 2391
Inside diameter : 30-400mm
Outside diameter : 36-480mm
Thickness : 3-40mm
Length : 3-9 meter
Application: Hydraulic Pipe,hydraulic cylinder, construction machine
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