1965，51mm, 75mm twin screw extruder used to produce SBR, BR were developed.

1970，UHMW polyisobutene reacting twin screw extruder was developed.

1975，SLJ-150/32, SLJ-125/31 extruding system used to pelletize wet ABS powders wined National Scientific&Tech Conference Award, Gansu Province Significant Scientific Achievement Award, Ministry of Chemical Industry Significant Scientific Achievement Award in 1978, wined national third-class invention award in 1987.

1978，STJ-80/100 single/twin screw extruding system used to pelletize wet ABS powders was developing, win New Product Award from Lanzhou Petrochemical Corporation.

1979，First lab-used twin screw extruder SHJ-30 was developing in China, wined Third Prize for Scientific Advancement Awarded by the Ministry of Chemical in 1989.

1980，STJ-55/65 single/twin screw extruding system was developing.

1981，ZFJ-36/28 evaporating twin screw extruder and SDJ-57/30 huge-degassing twin screw extruder were developing, wined 'sixth-five scientific and technological brainstorm project' honour in 1986.

1984，SSF-60/28 PC condensation polymerization twin screw extruder was developing, passed the certification from Shanghai Committee of Science and Technology.

1985，SHJ-68 compounding twin screw extruder was developing, wined Second Prize for Scientific Advancement Awarded of Gansu province.

1987，SHJ-72 compounding twin screw extruder was developing, wined Third Prize for Scientific Advancement Awarded of Nanjing city, wined Forth Prize for Scientific Advancement Awarded of Jiangsu province.

1989，Undertake the key enterprises of the state development project to design SSF-175/35 PC condensation polymerization twin screw extruder.

1990，Second-generation SHJ-68 compounding twin screw extruder was developing, wined state-level key new product project award in 1995.

1991，JB/T/5420-91 (co-rotating twin screw extruder), JB/T8417-91(Plastic degassing twin screw extruder) industrial standard were drafted.

1991，Undertook the major equipment developing project of Sinopec-absorbing 240mm compounding twin screw extruder tech and strive to make technological breakthrough.

1992，Undertook the 'eighth-five' critical project of SSTCC-absorbing C-170 10000MT/Year POM twin screw extruder tech and design.

1995，SHJ-78 twin screw extruder with new driving system was developing, the screw speed break though 300rpm in China.

1996，SHJ-58 twin screw extruder was developing, used in cross-linking, foaming area Cantilever type pelletizer was developing.

1997，SHJ-92 twin screw extruder was developing.

1998，SHJ-48 lab-used, production used twin screw extruder was developing; The wear-resisting tech of extruder pass the certification of the related Gov department.

1998，Ministry of Science and Technology approved our company as 'technical supporter of twin screw extruder'

1999，Clam-shell SHJ-92 thermosetting phenolic moulding compounding twin screw extruder with wearable liner was developed (PCC control system was used), SHJ- series extruder was certificated as 'good quality high tech product' by ASSOCIATION TECHNOLOGIE NOUVELLE DE FRANCE, and promoted in EU; STJ-78/180 double stage extruder used to produce thermo sensitive plastics, chemical cross linking plastics was developing.

2000，High torque, high performance (280kW, 500rpm) SHJ-92 twin screw extruder was developing, it was the highest tech product at that time, Longer L/D STJ-58/120 double stage extruder was developing; Clam-shell SHJ-78 twin screw extruder used to produce epoxy resin; SHJ-68B holtmelt pelletizer and water/pellets separator were developing; Industrial standard 'co-rotating twin screw extruder ' was revised; passed ISO9001 international quality system authentication. SPJ-78, SPJ-92, SPJ-132 clam-shell twin screw extruder was developed, and supply the gap that extruding thermo-set plastics by twin screw extruder.

2001，SHJ-92 twin screw extruder was developed, and export to Indonesia. Output is 1100kg/hr, power is 355kW, speed is 500rpm,it is the highest tech product in China. Double channel screen changer was developed, it is the really continuous screen changer.

Undertook the major equipment developing project of Sinopec develop continuous Banburymixer.  Undertook the major equipment developing project of Sinopec develop twin screw extruder and processing tech used to produce new type resins.

2002，Undertook the major equipment developing project of Sinopec develop huge extruding and pelletizing unit and the related software package. Co-rotating twin screw compounding extruder got state-level key new product project award. One step extruding ABS sheet by twin screw extruder tech was developed; Nano materials filling compounding line was developed and applied in large-scale production.

2003，150mm counter-rotating twin screw extruder used to produce thermo sensitive plastics was developed, undertook the 'National Innovation Fund Project'-high speed, high performance co-rotating twin screw extruder, Drafted industrial standard 'plastics strand pelletizer'.

2004，SHJ-18 lab-used twin screw extruder was developed, SPJ-48 clam-shell twin screw extruder used to produce thermo set plastics was developed, Undertook the 'MOST Research Institutions Fund Project'-'twin screw extruder used to produce new type polymer'; revised the industrial standard 'plastics extruding and pelletizing unit without water', absorbed huge two rotor continuous mixer tech, developed new type quick disassembling double brace pelletizer, developed multi-functional big L/D SHJ-30 lab used single screw sheet extruding line.

2005, PET 3 layers co-extruding line was exported to UAE; High filling EVA sheet extruding line in one stage was developed. SHJ-30 lab-used twin screw extruder was developed and widely used in the Institute and University. 100000MT/Year continuous double-shaft compounder was designed; Industry standard “Plastics Degassing Extruder” was drafted.

2006, 20000MT/Year PP twin screw compounding extruder and pelletizing line was developed, ABS reacting extruder was developed; Twin /single screw double stage extruding and pelletizing line was horned as “National Important New Products”; Undertake the innovation fund of Gansu to develop“Thermoset Plastics Extruder”.

2007 Undertake the innovation fund of Science and Tech Department to develop “Thermoset Plastics Extruder”; Undertake the Important Project of Gansu to develop the “20000Mt/Year PP Treatment machinery” Undertake the Important Project of SINOPEC to develop “200000MT/Year extruding and pelletizing line”.

2008 Undertake the Important Project of SINOPEC to develop “200000MT/Year extruding and pelletizing line”, Undertake the Ten-Dragon Project of SINOPEC to develop “Aramid reacting extruder”, undertaker “Scientific Research Institute Technology R&D fund project Developing the big compounding and pelletizing system”of the Technology Department of China.10000MT/Year twin screw compounding and extruding testing center was designed and used. STJ-132/250 double stage twin/single screw extruder was developed which capacity can be 10000MT/year. Gansu Polymer Compounding Tech. and Equipment R&D center was organized by us.

2009，Undertake the Technology Conquer Project SINOPEC to develop “Devolatilization and Extruding SB Equipment”;Many set twin screw extruders were used in BOPP extruding line；Double-Shaft Pre-reacting Equipment was developed；We were horned as the “Conquer Difficulty Team” by SINOPEC Lanzhou Company. Developed 1000MT/Year, 10000MT/Year underwater pelletizing system.