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Name | Honed tube | ||
Standard | DIN2391, EN10305, ASTM A519, GB/T 3639-200 etc | ||
Material | Q355B Q355D C20,ST52,E355 SAE1026.CK45 4130 4140 STKM 13C | ||
Heat treatment | BK+S | ||
Specification | Outer diameter(mm) | Inner diameter(mm) | |
40-480mm | 30-400mm | ||
I.D Tolerance | H8-H9 | ||
Length | Fixed Length, Random Length(3--9m)or as requests of customers | ||
Straightness | 0.5-1/1000 | ||
ID roughness | RA 0.1-0.8micron(max) | ||
Technology | Honed & SRB(SKIVED AND ROLLER BURNISHED ) | ||
Scope | Honed tube for hydraulic cylinder, swivel crane, injection machine | ||

























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