Quote: 1.the br-cu price is higher, and the thickness of 0.5 for special materials, unconventional makings, need to build. Minimum quantity for 2000KG.2.2000 material can produce "09064 GMBH - 11" about 150K, "09064-21" about 800K, the demand for the product, two for 20KG.3 therefore raw materials, purchase material is special for a long period, the preparation period for three months, Suggestions for similar material properties change, if possible, with 3/4H br-cu hardness. Whether can consider C5191 - H phosphor bronze, C5191 - H hardness is HV190-210. The raw material price is cheap money, and beryllium copper purchase material cycle is short.