JINING XUNDA PIPE COATING MATERIALS CO.,LTD

Who write the Technical standard of polyolefin tape coating for steel pipeline ?
All we know the standard "Technical standard of Polyolefin tape coating for steel pipeline SY/T 0414-2007" this standar has passed 10 years.
This standard will been updated in 2017.JINING XUNDA PIPE COATING MATERIALS CO.LTD is hornored to write this standard as only one supplier for this type materials in CHINA