ed ▁car b ide . ▁ ▁In ▁ 1 9 5 0 s , ▁c ement ed ▁car b ide ▁industry ▁grew ▁up ▁in ▁China . ▁Since ▁then , ▁c ement ed ▁car b ide ▁drawing ▁die ▁has ▁been ▁gradually ▁gain ing ▁popular ity ▁in ▁China . ▁Currently , ▁W C - Co ▁c ement ed ▁car b ide ▁is ▁widely ▁used ▁in ▁China , ▁Japan , ▁Sweden , ▁Italy , ▁etc . ▁In ▁some ▁other ▁count ies , ▁rare ▁metal ▁car b ides ▁( such ▁as ▁Ti C , ▁Ta C , ▁N BC , ▁etc .) ▁are ▁added ▁into ▁c ement ed ▁car b ide ▁drawing ▁dies ▁and ▁its ▁manufact uring ▁process ▁is ▁also ▁certainly ▁different . ▁ ▁In ▁China , ▁the ▁Cob alt ▁content ▁in ▁c ement ed ▁car b ide ▁drawing ▁die ▁is ▁basically ▁the ▁same ▁as ▁that ▁in ▁the ▁Soviet ▁Union . ▁The ▁traditional ▁grade ▁for ▁c ement ed ▁car b ide ▁drawing ▁dies ▁in ▁China ▁is ▁almost ▁Y G 8 , ▁rarely ▁Y G 1 5 ▁and ▁Y G 6 X . ▁Later , ▁in ▁order ▁to ▁obtain ▁better ▁we aring ▁resistance , ▁the ▁Cob alt ▁content ▁has ▁to ▁be ▁decre ased . ▁While ▁with ▁the ▁decre asing ▁of ▁the ▁Cob alt ▁content , ▁the ▁impact ▁t ough ness ▁and ▁flex ural ▁strength ▁of ▁the ▁c ement ed ▁car b ide ▁drawing ▁die ▁will ▁dram atically ▁decl ine . ▁In ▁recent ▁years , ▁the ▁Cob alt ▁content ▁adopted ▁in ▁c ement ed ▁car b ide ▁drawing ▁die