... offered 4.low price,fast delivery 6061-T6 aluminium alloy black cube top shaft block for mass flow control ... Co.,LtdMachining services1.productsShafts,flanges,fasteners,gaskets and seals,bearing accessories,vehicle parts, wind generator parts and all kinds ... customer:• non-alloy, low-alloy, alloy and high-alloy steel• cast iron (GG), spheroidal iron (GJS), cast steel (GS)• aluminium and bronze cast, ...