(1) Lime method; (2) Lime - iron salt method; (3) vulcanization; (4) Method of soft manganese ore; (5) comprehensive recovery method; (6) phosphate method; (7) activated carbon, activated Aluminum adsorption method; (8) reverse osmosis method; (9) ion exchange method.

Polyken Hot Applied Shrinkable Tape

It is a hand wrapped heat shrinkable tape designed for corrosion protection of straight pipes, fittings, bends, elbows and other irregular configurations.. When heated the backing layer shrinks and the adhesive flows and forms a reliable corrosion protection seal onto metal and adjacent coating surfaces.The Polyethylene Heat shrinkable Tape needs no primer nor patch closure and reduces application time and labour costs.