L/C, D/A, D/P, T/T, Western Union, MoneyGram
standard packaging
bonded post tensioning system
system / Magnel system / Leonhardt system / Lee-McCall system / Gifford-Udall system
prestressed concrete / reinforce concrete / reinforcing concrete
bonded / unbonded
one strands/multiple strands /multistrand/bars
developers / architects / engineers
bonded post tensioning system