22

2020-10

our roller and cylinder were made precisely, mainly used in paper machine,printing and dyeing, metallurgy, textile industry, and other industry.

“ZGL GROUP” owns a technological R&D center with a great number of high quality talents of strong will, precise skill and professional expertise, among which there are 40 senior and intermediate level technicians with master or bachelor’s degree, the group is able to carry out independent R&D in developing major technical equipment with the support of strong technological force, rich practical experience and advance design abilities.we have passed the API ISO international quality system certification.

2020-10-22

22

2020-10

total investment reached RMB 800 million ,with an annual output of 500,000 tons of seamless steel pipes

total investment reached RMB 800 million ,with an annual output of 500,000 tons of seamless steel pipes

2020-10-22

29

2019-07

DOP-S355J0H

2019-07-29

29

2017-07

DOP-S235JRH

2017-07-29

29

2017-07

DOP-S355J2H

2017-07-29

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