4 inch RF WN Flange, Class 150 Flange

  4 inch RF WN Flange

  Size:4 inch

  Pressure:CLASS150,SCH40

  Material:ASTM A105

  Standard:ASME B16.5

 Except WN Flange,we can also provide Blind flange,slip on flange,

socket welding flange,threaded flange ect.

Qinhuangdao Zhongyan Machinery Co., Ltd dedicated to provide advanced products and equipment production line for the customers. Most of our products get national invention patent. We mainly engaged in trading powder handling equipment & spare parts, plastic up production line, pipeline products & spare parts, and various kinds of steel materials.

The company also own excellent sales team, products have been exported to Europe, Middle East, Southeast Asia and America, etc. Our products and service get good comment from most of the customers.

Our Philosophy

Photos of training

Q:.How to guarantee the product quality?

A.We have valid ISO 9001:2008 certificate,we will trace all production,sales,transportation and 

after sale service process strictly as per quality management system.

B.Also we are trade assurance member,for our first cooperation,you can send us alibaba’s trade 

assurance order to us to guarantee product quality and timely delivery.

C.When we purchase from other manufacturer,we will send our own inspection person to do site 

inspection for our clients.

D.For pipe fittings,we will cover them with plastic film or plastic bags before put into wooden case,

pallet or directly put into container.This can effectively avoid rust and damage during long time sea 

transportation.

Q.Can you deliver the goods within short time?

Yes,we can.

A.We have a lot of cooperated factories,if you are in badly needed of the goods,we have more 

choice to purchase from manufacturers who can provide short production time.

B.We will choose manufacturer who located near the sea port to save time and transportation 

cost for you.

C.We have cooperated freight forwarders at most Chinese base ports to satisfy our fast 

transportation and customer declaration.

A: Directly contact Linda through Trademanager.

B:Send email through below email or call us.

We will do our best to answer your questions in very short time,thank you.

Contact Person:Ms Linda Liu

Tel:0086-335-8548228

Fax:0086-335-8549228

Skype:lindaliu1221