... 3.Qualified machining Description:1. Name: ADC12 die casting speaker aluminium frame2. Technology: aluminium die casting3. Material grade: ADC124. Standard: ASTM, JIS,DIN,BS,NF5 ... parts, motorcycle parts, pump parts, locomotive parts, machinery parts, tool parts, furniture parts, ect.Ningbo Jiahui Machine Parts Co., Ltd is specializing in manufacturing aluminum die casting which is used for ...