NSG-2 solid-free gel timing plugging agent is prepared with sesbania gum, paraformaldehyde and gum extender as main materials.

以田菁胶、磨芋胶、多聚甲醛和凝胶增强剂为主要原料，合成新型的无固相凝胶定时堵剂NSG - 2。

youdao

NSG-2 solid-free gel timing plugging agent is prepared with sesbania gum, paraformaldehyde and gum extender as main materials.

以田菁胶、磨芋胶、多聚甲醛和凝胶增强剂为主要原料，合成新型的无固相凝胶定时堵剂NSG - 2。

youdao