合成橡膠 BUNA SB 1500 - Schkopau Styrene Butadiene Rubber, Emulsion 50 (ML 1+4, 100°C) 23.5 合成橡膠 Buna SB 1502-Schkopau Styrene Butadiene Rubber, Emulsion 50 (ML 1+4, 100°C) 23.5 合成橡膠 Buna SB 1712-Schkopau Styrene Butadiene Rubber, Emulsion 50 (ML 1+4, 100°C) 23.5 芳烴油 合成橡膠 Buna SB 1721-Schkopau Styrene Butadiene Rubber, Emulsion 53 (ML 1+4, 100°C) 40.0 芳烴油 合成橡膠 Buna SB 1723-Schkopau Styrene Butadiene Rubber, Emulsion 50 (ML 1+4, 100°C) 23.5 TDAE Oil 合成橡膠 Buna SB 1739-Schkopau Styrene Butadiene Rubber, Emulsion 53 (ML 1+4, 100°C) 40.0 TDAE Oil