... a) GB / QB: QSn6.5-0.1, QSn6.5-0.4, QSn7-0.2, QSn4-3 b) ASTM: C52100, C51900, ... C5191, C5111, C5102 d) DIN: CuSn6.5P0.1, CuSn6.5P0.4, CuSn7P0.2, CuSn4Zn3 2) Specification: 0.1 - 12.0mm ... 3) Excellent corrosion-resistance, wearability, elasticity and welding performance 4) Application: suitable to be made into spacecraft and aircraft ... fittings, instrument hair springs and arc weldi ng material Tin Bronze