Product Description
JIANZHI product quality can pass most of the assessments and certifications in the world,The current international certifications obtained by Jianzhi are as follows:UL Listed /FM Approved /CE /ABNT /TSE /SNI /ISI.National Standard of Malleable iron pipe fittings in China is GB/T3287, material standard is GB/T9440.JIANZHI is the main drafting units of those two standards and played an important role.