美国采购需求：空调盘管清洗机、蒸汽盘管清洗机、暖通空调蒸汽清洗机、制冷真空泵、无火花真空泵、不产生火花真空泵

I'm reaching out to inquire about the purchase of several items, specifically three models and a safety control valve. I'm interested in acquiring the complete set for our ongoing projects. Could you please provide the pricing, lead times, and any bulk order discounts available? Additionally, I'd appreciate details on the specifications and warranty information for these products. Looking forward to your prompt response so we can proceed accordingly. Thank you!