... shanghai portcustomers' design : we welcome customers' drawing for tubing head spool Rated wp2000psi-15000psiNB7-1/16",9",11" ,13-5 ... 8" ETCPSL1-3PR1-2MCAA-FFNormAPi 6a latest editionThe tubing head of our fty are designed and manufactured in accordance ... Our fty Yancheng Qihang Petroleum Machinery Co.,Ltd is located the the noted petroleum machinery manufacturing base Jianhu ,Yancheng,Jiangsu . Our ...