Anyị bụ ndị na-eduga mbubata na mbupụ ụlọ ọrụ nke nwere ike chepụta azụ ka tọrọ ntọala na 1974, aha Shijiazhuang Minmetals na Machinery Export Company.Na 1998, ọ gbanwere aha Shijiazhuang Jipeng Imp.& Exp.Co., Ltd. nke Ministry of Foreign Economic and Trade nke P. R. China kwadoro n'oge ahụ.Ụlọ ọrụ anyị bụ ọkachamara na ígwè na ígwè ọrụ, ụlọ ọrụ mmepụta ihe na ihe owuwu.Ngwaahịa kachasị mma na nke nwere ahụmahụ bụ pipeline metal na ngwa maka drainage ụlọ n'ime na n'èzí, ọrụ obodo.

1.Cast ígwè cookware

2.No-hub nkedo ọkpọkọ ígwè, ihe nrụnye na igwe anaghị agba nchara maka ịmepụta drainage, mkpofu na ikuku dị ka EN877, DIN19522, ASTM A888, CISPI301, CASB70, ISO6594.

3.Grooved oyiyi akwa na njikọ maka ọkụ ọgụ.

4. Ductile nkedo ígwè ọkpọkọ na akwa maka ibufe mmiri ubi ISO2531, EN545, EN598.

5. Manhole mkpuchi na etiti ka EN124, SS30: 1981, gratings, ala na n'elu ụlọ drains.

6. Ihe nkedo dị iche iche na nkedo na akụkụ machining dị ka eserese ma ọ bụ ihe atụ nke ndị ahịa si mba ọzọ.Ihe nwere ike ịbụ ductile, carbon steel na igwe anaghị agba nchara.