China 2020 wholesale price Sch40 - Carbon steel pipe nipples male and female thread NPT BSP – Leyon manufacturers and suppliers

2020 wholesale price Sch40 - Carbon steel pipe nipples male and female thread NPT BSP – Leyon

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To meet the customers' over-expected satisfaction , we have our strong team to provide our best overall service which includes marketing, sales, designing, production, quality controlling, packing, warehousing and logistics for Cast Iron Fitting , Toilet Elbow Pipe , 3 Inch Pipe Flange , If needed, welcome to make contact with us by our web page or phone consultation, we will be delighted to serve you.

2020 wholesale price Sch40 - Carbon steel pipe nipples male and female thread NPT BSP – Leyon Detail:

Carbon steel pipe nipples male and female thread NPT BSP

Black steel tubes are manufactured as seamless tubes, which makes them a better type for gas transport and fire sprinkler systems as they are more fire-resistant than galvanized tubes. Black iron pipe is also most commonly used in fire sprinkler systems because of its high heat resistance and is most often used in water supply lines because of its resistance to water damage. Because of the dark surface formed from iron oxide during manufacturing, it is called black steel pipe

The main difference between steel pipe and galvanized pipe is the surface. Black steel tubes are uncoated and contain no steam, so they are widely used to deliver gases such as propane and natural gas to residential and commercial buildings.

1) During and after production, 10 QC staffs with more than 10 years experience inspect products in random.Carbon Steel Pipe nipple of Strict Quality Control

2) National accredited laboratory with CNAS certificates
3) Acceptable inspection from third party appointed/paid by buyer, such as SGS, BV.
4) Approved UL /FM, ISO9001, CE certificates.

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1.5 Threaded Pipe