美国采购需求：管道配件、管道附件、商用暖通空调、住宅暖通空调、空调、淋浴排水管

I'm looking to source pipe clamps and bolt fixtures for an upcoming project. Could you provide me with detailed pricing information, including any bulk order discounts? Additionally, please share the specifications for these products, such as material types, sizes, and any relevant certifications. It's also important to know the current availability of these items, including lead times for delivery. If you have any recommended alternatives or related products, I would appreciate that info as well. Thanks!