In December 25, 2014, Sinopec Tianjin branch business department, technology department,purchasing department leadership to our site visits. Tianjin Petrochemical main "Chengduoriginated" independent research and development of high voltage self tight flange ZY-loc forsafety, reliability of the blue sky project of Sinopec -- Szorb project assessed the. At the same time,whether can ZY-loc add into Sinopec another product code on-site assessment.

First, Sinopec Tianjin Branch visiting leaders understand the design principle of ZY-loc; and the traditional flange and similar foreign products difference and advantage; Zy-loc the real performance in chemical industry, coal chemical industry, oil and gas fields; the product has broad market prospects and good momentum of our plan to enter the military domain. Then, TianjinPetrochemical leaders visited the "Chengdu originated in Guanghan production base", various departments in the field respectively on "Chengdu originated" enterprise quality, operation norm and site investigation, evaluation, but also put forward valuable advice and direction to ourcooperation.

Then, after a series of data submission, review, report, "high-pressure Chengdu originated" selftight flange ZY-loc in February 4, 2015 by Sinopec add columns to group purchasing list.