... ,JIS,BS,AS,ISO,GB,No truck leaf spring heavy duty nstandard bolt(according to your order), ... About 30days(also according to your order); 80% of the production are for OEM customers and left ... make a full range of multi-leaf spring and parabolic leaf spring and Z-type leaf spring product which is ... are exported to overseas throughout over 30 countries terms of Asia, Mid-East, Euro, North-America, South- ...