We are professional High Precision cold drawn seamless honed Pipes factory from China
Grade: ST52, ST52.3, CK45, Q345B, EN355, 16Mn, STKM13C, SAE1020/1026/4140, 42CrMo, TP304/316 etc.
OD metric size: 30 to 2000 mm
OD imperial size: 1.5" to 50" (inch)
Length: Max 20 Meter
Straightness: <0.5 mm/m
Tolerance OD: DIN 2391
Tolerance ID: ISO H8, H9, H10
Roughness(Ra): <0.8
Type: BK+S, high precision cold drawn, seamless honed, burnished
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