The black plastic will help seal and the weight of the door holds it down.
黑色塑料膜的作用是密封，而门的重量会把它压住。
The bottom of can industry seal coating, Cars, water-sealed industry structure plastic flat coating.
制罐行业底部密封涂胶、汽车、水封行业结构胶平面涂胶。
A heavy duty composite oil seal with an outer cup and a plastic inner cup.
一重型与外部杯和塑料杯内复合油封。
A heavy duty composite oil seal with an outer cup and a plastic inner cup.
一重型与外部杯和塑料杯内复合油封。
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