澳大利亚采购需求：玛钢配件、沟槽铁配件、管接头、家居装饰、碳钢配件、不锈钢配件

I'm looking to purchase 80 units of 2.5-inch grooved flexible couplings. These should be rated for 1500 psi and should match the quality and performance of reputable brands like Victaulic. Could you provide details on availability, pricing, and lead times? Additionally, I'd appreciate any information on related specifications and whether you offer any warranties or certifications for these products. Thank you!