PT. Surrama Tridaya Mandiri adalah perusahaan yang bergerak dalam bidang usaha importir , distributor alat-alat instrument : flowmeter, gas detector, control valve, safety valve, pressure reducing valve, dll
maintenance-free, soft-sealing connection flange / threaded flange valve made out of EN-JS1030, optionally available with locking lever, worm gear, electric or pneumatic actuators DN 25 to 500 PN 10, 16
