... quenching & tempering.3.Surface Finishing: sand blasting, self-color with oil, painting, electric plated, powder coating & hot-dipped-glav. 4 ... sample time:7~10days after receiving your paymentdelivery time:with 45days after receiving your downpaymentpayment:T/T, L/C ... a reputable, funny, enthusiastic and down-to-earth team with high ability."Customer oriented, meet customers' demands, exceed customers ...