① Use glass fiber roving instead of fabric, which can reduce material cost;
②The production efficiency is 2 to 4 times higher than that of hand lay-up;
③Good product integrity, no joints, high interlayer shear strength, high resin content, good corrosion resistance and leakage resistance;
④It can reduce the consumption of flashing, cutting scraps and remaining glue;
⑤The product size and shape are not restricted.
Its disadvantages are: ① high resin content,