塑料新型护坡材料
new plastic slope-shield materials
新型Boussinesq型方程
new type of Boussinesq equations
新型Salen型配合物
Novel Salen-type complexes
新型新风空调器
new type of fresh air conditioner
Cr17Mo型塑料模具钢
Cr17Mo Type Plastic Mould Steel
T型塑料柄改锥
plastic T-handle screwdriver
大截面预硬型塑料模具钢
prehardened steel for large section plastic mould
pre hardened plastic mould steel for large section mould
大型塑料袋机
heavy-duty plastic sack machine
大型塑料件
large-scale plastics article
big plastics part