Product information: 1) Up to ASTM B 135 / BSEN 12449 / DIN 17765 / JIS H3300 standards 2) Material Brand of Common Brass Tube: Grade USA U.K Germany Japan China BG ASTM BS DIN JIS H H85 C23000 CZ102 CuZn15 C2300 H80 C24000 CZ103 CuZn20 C2400 H70 C26000 CZ106 CuZn30 C2600 H68 C26200 / CuZn33 / H65 C27000 CZ107 CuZn36 C2700 H63 C27200 CZ108 CuZn37 C2720 H62