qingdao city, China 
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Welcome to Yier Industrial Limited
We are specialize in producing the ductile iron pipe , cast iron fittings, flange adaptor , coupling and dismantling joint , manhole cover , surface box and valve box , gate valve for water supply and sewage industry for more than 20years.
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Manager
Rachel
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Year of Establishment
1996
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Primary Business
Manufacturer
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Number of Employees
101 - 250
