GTC030-20-27S-LC GTC030-20-27S-LC-027 GTC030-20-27SW GTC030-20-27SW-025 GTC030-20-27SW-025-B30 GTC030-20-27SW-025-B30-LC GTC0302027SW025LC GTC030-20-27SW-025-LC GTC030-20-27SW-B30 GTC030-20-27SX