A級雙合金料筒 A-level dual alloy barrel: 合金硬度HRC58℃-65℃左右. The alloy hardness is about HRC58 ℃ -65 ℃ 合金成份:Ni+Co+Cr+B+Wc(碳化鎢含鎢35%) Alloy composition: Ni + Co + Cr + B, + Wc (tungsten carbidecontaining tungsten 35%) 合金厚度:1.0mm-2.0mm. alloy thickness 1.0mm-2.0mm 皮膜密度:98-99.8% Film density of 98 - 99.8% 適用范圍:腐蝕性大、磨損大含添加劑為40%-60%加磁粉、鐵粉、石粉、LCP、PA、PC、PBT、PP、PET、PA66、PA666、PEK及無鹵料. The scope of application: Corrosive wear big-containing additivesof 40% -60% of magnetic powder, iron powder, powder, LCP, PA, thePC, of PBT, PP, PET,, PA66, PA666, PEK and halogen-freematerials.