標準
DIN,ANSI,ISO,JIS,GB,Non standard
Material
Steel,brass,stainless steel,carbon steel,alloy steel,aluminum etc
Size
All sizes or customized
Surface treatment
Passivate, plated, polishing etc
Certification
ISO9001-2008
Payment
TT/Paypal/Credit card
Shipping
TNT/UPS/DHL/EMS or others