... for marinas, road casing, road boring, penstocks, fabrication, pillars and We can supply various size spiral steel pipe, range of ... for marinas, road casing, road boring, penstocks, fabrication, pillars and pilings. There are many applications that you can use Spiral ... pipe. Fusion Bond Epoxy, Coal Tar Epoxy and many other protective paints and coatings. Some companies however have some limitations ...