1. Professional design team, drawing is available. 2. Specilized production 3. Reliable quality and favorable price
HS250-3/5/8 (aluminum alloy) invisible door-window anti-burglar alarmCharacteristics 1.standard NC contact, compatible with all kinds of alarm hosts in the market 2.can choose to instal the wireless transmission...
1) Aluminum-alloy try square:
2) Material: stainless iron for the blade, aluminum-alloy handle
3) Graduation: in metric system and British system or British system only