... Product No./NameJJ-00014 / Aluminum alloy casting household appliance boiler part Manufacture Process1) Mould/Tooling analysis, design & manufacturing2) Mould/Tooling testing ... , TPR, TPU, TPE, HDPE, PMMA) etc.5) Surface Treatment: High quality polish, powder coating, Chrome/Nickel/Zinc(white, blue, yellow, black ... , also accord with GB6414 Aluminum alloy casting household appliance boiler part