5.Casing Coupling:
Hebei Borun Steel Trade Co.,Ltd is a manufacturer and exporter with 15 years’ experiences.We mainly exports Carbon Steel(Seamless steel pipe,OCTG and so on).If you’re interested,pls contact me.

Technical standard API SPEC 5CT、API SPEC 5B
Product grade H40、J55、K55、N80-1、N80Q、L80、C95、T95、P110
Specification range OD127~365.12mm（4 1/2"~13 3/8"）
Thread types Short round thread(STC)、Long round thread(LC)、Buttress thread(BC)
Application of product Internally threaded cylinder for joining two lengths of threaded casing pipe
Contact Info Whatsapp/Skype:+86 18233500310
Linkedin:Tina Lee
产品名称：API 5CTCasingandTubingCoupling
产品手机链接：http://m.vooec.com/product_201127726.html
产品网站链接：http://www.vooec.com/cpshow_201127726/