GMB is good quality naman, because it is OE to Mazda, GM, Hyundai, and Nissan. About timing belts Bando made in Japan, which is packed in a box, this is what my friend told me. Or Gates timing belt. They are both major OE brands. But remember this timing belts have tendency to be aftermarket quality because of the market here in Philippines demand cheap products so Suppliers only supply what majority of the Philippine market wants. Like NWB or Nippon Wiper Blade, they have different kinds of wiper blade quality. Such as NWB Aqua - Is lower quality than OE Stock but it is cheaper made in Malaysia, NWB NR-27 - is better quality wiper blade made in Japan but price is almost double of the NWB aqua.