Those pants will have CE rating. Look up the appropriate CE1 and CE2 for impact protection (usually the armour) and "A-AAA" for abrasion resistance. You probably not need to worry too much about what material it is made of as long as it performs in the CE Abrasion tests.

Safety is always a compromise between your risk aversion, cost, riding style, overall comfort and where you ride. Do note, Aramid backed pants can run hotter as with high quality thick full grain leather, which is still the best for abrasion.
Boots and gloves will be the next most important safety items after a helmet. Get those first and worry about jacket and pants, or you can make do with cheaper items if on budget constraints. 

Gloves, get leather ones, with a hard plastic/carbon fibre palm slider, the larger the better. The palm slider is the most important part of the glove. Pity some manufacturers either undersize them or omit them.

Boots, if you are newer rider get at minimum a higher cut boot that is relatively stiff against lateral crushing, as for newer riders on a big bike stands higher chance of jatuh bodoh. Dropping a 200kg bike on your lower leg is no fun.

my guess is to get abrasion rated will increase the price

you can check winmaster in cheras, they sell furygan brand
sunny cycle also has equipment store but a bit limited
if china brand just look at serdang motorcycle

You can try Bike Quest at PJU. They are a bit hard to find, because the shop it at the first floor next to a speed99. They carry Clover riding gear (most of them have CE abrasion rating), Forcefield armour (good stuff that) and Falco boots (especially good selection for female riders).

For Klim, you can try Welly.

You can try NKS@sentul or GoBike@PJS (its sister retail store) for Shima brand.

As an alternative to Serdang, you can also try Vamanz at PJS.
The reason you only commonly find CE abrasion rating on European brands is now, to sell riding gear in most of Europe, they require CE abrasion rating/test to qualify for motorcycle gear. The Japanese lack in this area so far. So if you must have a garment that is CE abrasion rated, you have to look at the European brands, and the rather steep price they come with.
The reason why CE abrasion rating garments are more expensive (on top of the cost of testing and certification) is the testing schedules not only covers the actual abrasion, but also seam strength. So, higher rated garments most will have double or triple stitched reinforced seams at a higher production cost. Your AAA garments will also likely use far more exotic fabrics than your normal A or B rated garments.

Ultimately, safety is a compromize between cost you are willing to pay, skin you are wiling to lose, comfort (AAA garment can be hot and heavy) and what sort of riding you do most of the time. For me as a daily commuter, my speeds usually dont go much over 100 so for me impact protection and daily comfort/cost is more important than abrasion. Broken bones are a lot harder to deal with than roadrash, but thats not saying severe roadrash is not a bitch to deal with. Its a compromise i make for myself and myself only.

and FWIW...if you are buying riding gear, make sure you buy the correct size. Most end up with sizes too big thinking they are more comfortable, but that is mis placed. Armour needs to be tight and in place for it to work as intended and too much fabric flapping in the wind would and could cause all sorts of buffeting, vibration and loss of comfort. I have a jacket that causes so much buffeting on my helmet that I cant go over 170 without getting a headache. Wasnt a problem before as my 400 maxes out at 160, but my 800 will do 230.

Go with leather for the best and deal with heat. They are stiffer and dont flap around like ill fitting fabrics.