A 18th Vietnam (Ho Chi Minh City) fluid technology, pump, valve leh pipe phochhuahna

2020.12.3^{RD 10 a ni.}-5^{th 10 a ni.}: Wasinex at the 18 .^{th 10 a ni.}Vietnam (Ho Chi Minh City) Fluid technology, pump, valve leh pipe phochhuahna te