??? 该系列产品适用于输送低位槽内的各种低、中、高粘度的介质,输送压力范围大、计量精度高,并可进行全程保温。具有压力安全保护、计量控制、耐腐蚀、耐高温等特点。 The series is suitable for transmitting various low.medium and high viscosity medium in the low tank It is with large transpor[pressure range,high measuring accuracy and can keep warm on the entire process.The gear pump is with pressure safety protection,measurement control,anti-corrosive and heat resisting featUres.