Min. Order Reference FOB Price
100 Pieces US$4.99-9.99 / Piece
Product Description
The gas bag is also called "gas spacer","air spacer","BJQ","blast bag","bore hole plug","spacing charging" etc. Pressing Type Gas Bag (Adjustable Speed)Operate Instruction Steps: 1, Opening the rope and straightening it out. Operator need determine the number of depth meters placed on the ...