“MAKER: DONGHWA;
TYPE: LR;
MODEL: SHELL & TUBE” DIAPHRAGM ASSEMBLY DONGHWA .LR.12
“MAKER: DONGHWA;
TYPE: LR;
MODEL: SHELL & TUBE” O-RING DONGHWA .LR.55
“MAKER: DONGHWA;
TYPE: LR;
MODEL: SHELL & TUBE” O-RING DONGHWA .LR.358