Aluminum lighting heat sink 1.Competitive price ... alloy.3.our strong R&D and QC department can control the products to meet your ... consultation to your design for production improvement and cost savingCompetitive price,best performanceSamples are availableCustomized ... 2344V, TQ1, 2343, SKD61, 45#steel, etc.Heat treatmentHardened, NitridingHardnessHRC50~55 Mould featureAdvanced design, Novel structure, ...