Features:
1) Wide range of M12-M120, 1/2"-4", which are in accordance with the following
standards: GB/T, SH, HG, H, JB, GD, ANSI (ASTM/ASME), DIN and other non-
standards,with surface treatment Teflon.
2).The company introducte overseas advanced technology that called phosphorization,and dacrometr which can also be named with Zinc/Chromate Coatings in our country.
3)The products are specifically targeted toward the oil, petrochemical, chemical,
electric power (nuclear power station), machine and military industry enduring strict
precision, high strength, and strong rust in harsh environments
bolt that can be used in nuclear power station,Wide range from M12-M120, 1/2"-4"