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Dear customer,
Thanks for your time.
In May, Qingdao Yingli head company give more support to the WYL ball valves, including carry out big promotion, prepare plenty of free samples, reasonable arrangement of production time, timely adjustment and maintenance of production equipment, to ensure shipment quantity and quality.
If your order is big, we will offer extra discount for you. May is really the best time to purchase the WYL ball valves.
If you are interested, you are mostly welcomed to ask any question or send inquiry list for more details.
Thanks & Regards,

Anna