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Address: The west of Yellow River Road, Puyang City, Henan Provice, China .
Phone: +86-393-8910958
Fax: +86-393-8910966
Attn : Linda cheng
Mobile: +86-13912509378
WhatsApp:+86-13912509378
E-mail:zyblt(at)126.com
blt_coupling(at)yahoo.com
Website: www.17v38.com
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API seamless oilfield coupling
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Parameter description：
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Product Name: API seamless oilfield coupling
Specification:5 1/2" LTC seamless oilfield coupling
Execution Standrd: API 5CT &5B
Size : 4 1/2" to 18 5/8"
Material Grade : J55,K55,N80,L80,P110
Threads : STC,LTC,BTC
Surface Treatment : whole phosphating or inside phosphating or outside blueing
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