Bolted Bonnet Gate Valves for Alkylation service (HF Acid service see page 19).
Bolted Bonnet Gate Valves for Alkylation service (HF Acid service see page 19).
适用于烃化物应用领域的螺栓阀帽闸阀（氟化氢酸应用领域请参阅第19页）。
Bolted Bonnet Gate Valves for Alkylation service (HF Acid service see page 19).
适用于烃化物应用领域的螺栓阀帽闸阀（氟化氢酸应用领域请参阅第19页）。