PP-2500HY Lea e gaosia e Saina Energy Group Ningxia Coal Alamanuia Co., Ltd,fa'avae ile NTH's Novolen gas-phase polypropylene technology.O le oloa e gaosia i le polymerized propylene ma le ethylene e avea ma mea autu autu, I lalo o le gaioiga a se faʻamalosi, e ala i le faagasologa o le polymerization, vavaeeseina, granulation, afifiina, ma isi.