... price 5. factory direct sale 1. 40Mn quality alloy steel2. carbonized harden 3. competitive price4. trend to long cooperation Double pitch conveyor ... chainC2040, C2042, C2050, C2052, C2060, C2062, C2080 5.has taken measures ... 2.K-1,K-2,K-3,SA-1,SA-2,SK-A,SK-24)double pitch transmissions v& conveyor chains :2040 ...