Roofing felt washers with nail producer

P.W. OSA is a leading manufacturer of roofing felt washers with a nail. Our many years of experience and the latest machinery allow us to offer high-quality products that are necessary for roofing works. Our roofing felt washers with a nail are resistant to long-term adverse weather conditions. Roofing nails are one of the frequently purchased types of nails. They are used during roofing works, which are an essential element in the construction of a house or renovation.