stuffing box, remove yarn

Stuffing box, On Pneumatic conveying systems, Remove Yarn, with Screen mesh
with Inside buffing, with Maintenance hole, Under Silo(Hopper), Stainless steel, to LG Chem.
http://blog.cyworld.com/kt2004
http://cyworld.com/jet2004
sales@steeltiger.co.kr, steel :(쇠)금, tiger :(호랑이)호